Free with trial High school isometric people icons collection with human characters of teachers and students with school building vector illustration. Knowledge vectors Isometric School People Set. High school isometric people icons collection with human characters of teachers and students with school building vector. High school isometric people icons collection with human characters of teachers and students with school building vector illustration
Free with trial Books. Art illustration: a group of books. Knowledge vectors Books. Art illustration: a group of books
Free with trial Students Watch Online Training Video with Teacher on Huge Laptop. Online Teaching, Share Your Knowledge, Trainer with Headset Speaking from Screen. Colorful Leaves Background. Flat Vector Illustration. Knowledge vectors Students Watch Lesson with Teacher on Huge Laptop. Students Watch Online Training Video with Teacher on Huge Laptop. Online Teaching, Share Your Knowledge. Students Watch Online Training Video with Teacher on Huge Laptop. Online Teaching, Share Your Knowledge, Trainer with Headset Speaking from Screen. Colorful Leaves Background. Flat Vector Illustration
Free with trial Notice Live Test In Progress Sign On White Background. Knowledge vectors Notice Live Test In Progress Sign On White Background.
Free with trial People in light bulb vector design. Corporate business and industrial creative logotype symbol. Brainstorming and teamwork concept. Knowledge vectors People in light bulb vector design. Corporate business and industrial creative logotype symbol.Brainstorming and teamwork concept
Free with trial Teacher Appreciation Week in United States. Celebrated annual in May. In honour of teachers who hard work and teach our children. School and education. Student learning concept. Vector illustration. Knowledge vectors Teacher Appreciation Week in United States. Celebrated in May. In honour of teachers. School and education. Vector. Teacher Appreciation Week in United States. Teacher Appreciation Week in United States. Celebrated annual in May. In honour of teachers who hard work and teach our children. School and education. Student learning concept. Vector illustration
Free with trial Vector Infographic Elements Templates Presentation. Knowledge vectors Light bulb Infographic. Generating new ideas concept. Vector slide template. Creative brainstorming diagram. Vector Infographic Elements Templates Presentation. Vector Infographic Elements Templates Presentation.
Free with trial Set Microphone, Electronic book with mouse and Location on the globe icon. Vector. Knowledge vectors Set Microphone, Electronic book with mouse and Location on the globe icon. Vector.
Free with trial Study vector icon sign symbol. Study icon sign vector,Symbol, logo illustration for web and mobile. Knowledge vectors Study vector icon sign symbol. Study icon sign vector,Symbol, logo illustration for web and mobile
Free with trial A woman enjoys reading a book while surrounded by a stack of books and potted plants in her study, A woman reading with a stack of books and a study lamp in a flat illustration. Knowledge vectors A woman enjoys reading a book while surrounded by a stack of books and potted plants in her study, A woman reading with a stack of. Books and a study lamp in a
Free with trial Artificial intelligence vector illustration. Modern cyberbrain concept. Machine learning and neural network. Artificial intelligence infographic banner. AI card with icons. Knowledge vectors Artificial intelligence vector illustration. Modern cyberbrain concept. Machine learning and neural network. Artificial. Intelligence infographic banner. AI
Free with trial Digital illustration of human hand holding bright idea bulb, showcasing concept of inspiration and solution. Knowledge vectors Isolated cartoon hand holding glowing light bulb, representing new idea, creativity, and innovation. Digital illustration of human hand holding bright idea bulb. Digital illustration of human hand holding bright idea bulb, showcasing concept of inspiration and solution.
Free with trial Brain scan analysis with marked sections, magnifying glass over an eye, and a checkmark. Ideal for topics thumbs up neuroscience, diagnostics, research, mental health, cognitive science. Knowledge vectors Brain Scan Imagery with Magnifying Glass and Checkmark for Medical Analysis. Brain scan analysis with marked sections, magnifying glass over an eye, and a. Brain scan analysis with marked sections, magnifying glass over an eye, and a checkmark. Ideal for topics thumbs up neuroscience, diagnostics, research, mental health, cognitive science
Free with trial Math formula on blackboard vector equation icon. Algebra or geometry school science, theory and practice. Knowledge vectors Math formula on blackboard vector equation icon. Math formula on blackboard vector physics equation icon. Algebra or geometry school science, theory and practice
Free with trial Reading book vector icon sign symbol. Reading book icon sign vector,Symbol, logo illustration for web and mobile. Knowledge vectors Reading book vector icon sign symbol. Reading book icon sign vector,Symbol, logo illustration for web and mobile
Free with trial A parent and child pair coding together at home sharing a joyful experience while learning programming fundamentals. Through online resources. AI generated. Knowledge vectors A parent and child pair coding together at home sharing a joyful experience while learning programming fundamentals. Through online resources. AI generated
Free with trial A pumpkin is creatively depicted with its segments resembling the spines of colorful books, blending literary and autumnal themes. Generative ai. Knowledge vectors A pumpkin is creatively depicted with its segments resembling the spines of colorful books, blending literary and autumnal themes. Generative ai
Free with trial Student profile online learning platform color icon vector. student profile online learning platform sign. isolated symbol illustration. Knowledge vectors Student profile online learning platform color icon vector illustration. Student profile online learning platform color icon vector. student profile online. student profile online learning platform color icon vector. student profile online learning platform sign. isolated symbol illustration
Free with trial An open book adorned with flowing leaves, symbolizing knowledge, learning, and literary wisdom. Ideal for education, libraries, or nature-inspired intellectual themes. This illustration evokes the organic growth of understanding and the richness of written works, vector design Generative AI. Knowledge vectors Open Book with Leaves, Knowledge and Literary Wisdom, vector design Generative AI. An open book adorned with flowing leaves, symbolizing knowledge, learning, and. An open book adorned with flowing leaves, symbolizing knowledge, learning, and literary wisdom. Ideal for education, libraries, or nature-inspired intellectual themes. This illustration evokes the organic growth of understanding and the richness of written works, vector design Generative AI
Free with trial Graduation message with hand made font. Vector illustration design. Knowledge vectors Graduation message with hand made font. Vector illustration design
Free with trial Symbolic icon showing education as a puzzle solved, wearing a graduation cap, in blue and black. Knowledge vectors Education Puzzle Solution: Graduation Cap Symbolizing Learning, Knowledge, and Problem Solving. Symbolic icon showing education as a puzzle solved, wearing a. Symbolic icon showing education as a puzzle solved, wearing a graduation cap, in blue and black.
Free with trial Educational Business Logo Template for Study and Learning Services. Modern and Professional Education Logo Template for Learning and Tutoring Businesses. Knowledge vectors Educational Business Logo Template for Study and Learning Services. Modern and Professional Education Logo Template for Learning and Tutoring Businesses
Free with trial State college design. Vector illustration decorative background design. Conceptual vector. Knowledge vectors State college design. Vector illustration decorative background design. Conceptual vector
Free with trial This image depicts a creative person with a bright idea, represented by a glowing brain in a profile view. The illustration showcases a human head in side view with a radiant, swirling pattern inside the brain, symbolizing inspiration, innovation, and imagination. The image is perfect for projects related to creativity, art, design, motivation, and productivity. Knowledge vectors A creative person with a bright idea and a glowing brain in profile view. This image depicts a creative person with a bright idea, represented by a glowing brain. This image depicts a creative person with a bright idea, represented by a glowing brain in a profile view. The illustration showcases a human head in side view with a radiant, swirling pattern inside the brain, symbolizing inspiration, innovation, and imagination. The image is perfect for projects related to creativity, art, design, motivation, and productivity.
Free with trial A simple yet intriguing illustration of a vintage skeleton key, symbolizing access, secrets, and discovery. Perfect for concepts related to unlocking potential, hidden knowledge, or historical themes, vector design Generative AI. Knowledge vectors Vintage Skeleton Key, Symbol of Access and Mystery, vector design Generative AI. A simple yet intriguing illustration of a vintage skeleton key, symbolizing. A simple yet intriguing illustration of a vintage skeleton key, symbolizing access, secrets, and discovery. Perfect for concepts related to unlocking potential, hidden knowledge, or historical themes, vector design Generative AI
Free with trial Book icon illustration. Book icon element simple design. Knowledge vectors Book icon illustration. Book icon element simple design
Free with trial Color flashcard for children. Vector illustration file. Educational worksheet for preschool. Knowledge vectors Color flashcard for children. Vector illustration file. Color flashcard for children. Educational worksheet for preschool. Vector illustration file
Free with trial Best School Teachers compliment. Two males and one female are smiling in front of school building. Vector illustration isolated on white background. Knowledge vectors Best School Teachers Praise Vector Illustration. Best School Teachers compliment. Two males and one female are smiling in front of school building. Vector. Best School Teachers compliment. Two males and one female are smiling in front of school building. Vector illustration isolated on white background
Free with trial Vector illustration of education and learning logo. Collection of education and school vector icon for stock. Knowledge vectors Vector design of education and learning sign. Set of education and school stock vector illustration. Vector illustration of education and learning logo. Vector illustration of education and learning logo. Collection of education and school vector icon for stock.
Free with trial A collection of linear vector icons representing various e-learning, remote education, and digital classroom features. Knowledge vectors Set of E-learning and Online Education Line Icons for Digital Learning Platforms. A collection of linear vector icons representing various e-learning, remote. A collection of linear vector icons representing various e-learning, remote education, and digital classroom features
Free with trial With money bag cartoon open book with cartoon shape. Vector illustration. Knowledge vectors With money bag cartoon open book with cartoon shape. Vector illustration
Free with trial Set line Online play video class and Web camera. Glowing neon icon. Vector. Knowledge vectors Set line Online play video, class and Web camera. Glowing neon icon. Vector. Set line Online play video class and Web camera. Glowing neon icon. Vector. Set line Online play video class and Web camera. Glowing neon icon. Vector.
Free with trial Educational Business Logo Template for Study and Learning Services. Modern and Professional Education Logo Template for Learning and Tutoring Businesses. Knowledge vectors Educational Business Logo Template for Study and Learning Services. Modern and Professional Education Logo Template for Learning and Tutoring Businesses
Free with trial Template for Happy Teachers Day. Hand gesture with a pointer indicating congratulations. Flat vector illustration. Knowledge vectors Template for Happy Teachers Day. Hand gesture with a pointer indicating congratulations. Flat vector illustration
Free with trial Hand Drawn Illustration of an Open Newspaper with Articles and Headlines. AI generated. Knowledge vectors Hand Drawn Illustration of an Open Newspaper with Articles and Headlines. AI generated
Free with trial Female teacher with book. Kid education smiling character. Isolated on white background. Knowledge vectors Female teacher with book. Kid education smiling character. Isolated on white background
Free with trial Wineglasses and Book. Realistic image of the object. With reflection. Knowledge vectors Wineglasses and Book. Realistic image of the object. With reflection
Free with trial Elegant logo with book symbol like brush stroke. Element for your design. Signs and symbols - graphic elements for your design. Knowledge vectors Elegant logo with book symbol like brush stroke. Element for your design . Signs and symbols - graphic elements for your design
Free with trial Opening educational web page in computer. Table lamp and books near monitor. Electronic studying courses, increasing knowledge isolated on purple vector. Knowledge vectors Table Lamp, Books and Monitor with Web Page Vector. Opening educational web page in computer. Table lamp and books near monitor. Electronic studying courses. Opening educational web page in computer. Table lamp and books near monitor. Electronic studying courses, increasing knowledge isolated on purple vector
Free with trial Education Logo Vector Art. Logo Template For Your Business. Art Logo. Knowledge vectors Education Logo Vector Art. Logo Template For Your Business. Art Logo
Free with trial A classic vector illustration of a fountain pen with a creative ink splatter. This artwork symbolizes writing, creativity, and knowledge. Perfect for author websites, stationery branding, educational materials, and publishing companies. vector design Generative AI. Knowledge vectors Vintage Fountain Pen with a Creative Ink Splatter vector design Generative AI. A classic vector illustration of a fountain pen with a creative ink splatter. This. A classic vector illustration of a fountain pen with a creative ink splatter. This artwork symbolizes writing, creativity, and knowledge. Perfect for author websites, stationery branding, educational materials, and publishing companies. vector design Generative AI
Free with trial School building design vector illustration. School building design, Education lesson study learning classroom and information theme Vector illustration. Knowledge vectors School building design vector illustration. School building design, Education lesson study learning classroom and information theme Vector illustration
Free with trial Monochrome illustration of an angel reading a scroll, featuring a halo, wings, and celestial stars on a dark background. Knowledge vectors Angel Reading Scroll with Halo and Wings in Monochrome. Monochrome illustration of an angel reading a scroll, featuring a halo, wings, and celestial stars on a. Monochrome illustration of an angel reading a scroll, featuring a halo, wings, and celestial stars on a dark background
Free with trial Set Mattress Library bookshelf Office desk and Baby crib cradle bed icon with long shadow. Vector. Knowledge vectors Set Mattress, Library bookshelf, Office desk and Baby crib cradle bed icon with long shadow. Vector. Set Mattress Library bookshelf Office desk and Baby crib. Set Mattress Library bookshelf Office desk and Baby crib cradle bed icon with long shadow. Vector.
Free with trial Young business man wit book avatar character. Vector illustration desing. Knowledge vectors Young business man wit book avatar character. Vector illustration desing
Free with trial Mind, Creative, thinking, idea, brainstorming Glyph Icon. Vector isolated illustration. Vector EPS10 Abstract Template background. Knowledge vectors Mind, Creative, thinking, idea, brainstorming Glyph Icon. Vector isolated illustration. Vector EPS10 Abstract Template background
Free with trial Professional Vector Logo Design High-Resolution & Fully Editable This high-quality vector logo is designed with precision and creativity making it ideal for modern businesses, startups, and creative professionals The design is clean, scalable, and easy to customize—perfect for branding marketing materials, websites, and print applications. Key Features:100% Vector format (AI EPS SVG)Fully editable (colors, text, and shapes)High resolution – perfect for both web and print Modern, professional, and versatile design Ready for branding and promotional use Elevate your brand with this premium quality logo!. Knowledge vectors University Symbol Vector hand for education logo design. Professional Vector Logo Design High-Resolution & Fully Editable This high-quality vector logo is. Professional Vector Logo Design High-Resolution & Fully Editable This high-quality vector logo is designed with precision and creativity making it ideal for modern businesses, startups, and creative professionals The design is clean, scalable, and easy to customize—perfect for branding marketing materials, websites, and print applications. Key Features:100% Vector format (AI EPS SVG)Fully editable (colors, text, and shapes)High resolution – perfect for both web and print Modern, professional, and versatile design Ready for branding and promotional use Elevate your brand with this premium quality logo!
Free with trial Light bulb icon with star symbol representing rating, reviews, and quality evaluation. Ideal for feedback systems, customer opinions, and product ranking concepts. Knowledge vectors Favorite Rating Light Bulb Icon with Star Symbol Representing Quality Review Feedback and Popular Choice Concept. Light bulb icon with star symbol representing. Light bulb icon with star symbol representing rating, reviews, and quality evaluation. Ideal for feedback systems, customer opinions, and product ranking concepts
Free with trial Networking dark or night mode web, landing. Female business character building professional connections and expanding business circles. Diverse network. Flat vector illustration. Knowledge vectors Networking. Female business character building. Networking dark or night mode web, landing. Female business character building professional connections and. Networking dark or night mode web, landing. Female business character building professional connections and expanding business circles. Diverse network. Flat vector illustration.
Free with trial Open data database icon in robotic hand. Digital file storage system software. Online documentation database technology concept on virtual screen. DMS. Integration API. Vector illustration. Knowledge vectors Open data database icon in robotic hand. Digital file storage system software. Online documentation database technology concept on. Virtual screen. DMS. Open data database icon in robotic hand. Digital file storage system software. Online documentation database technology concept on virtual screen. DMS. Integration API. Vector illustration
Free with trial Social media tutorial, tip, trick, quick tips, layout template with geometric background design in blue, white, yellow color. Vector illustration. Knowledge vectors Social media tutorial, tip, trick, quick tips, layout template with geometric background design in blue, white, yellow color. Vector illustration
Free with trial This image illustrates the concept of idea generation and thinking, represented by a light bulb and a brain. The light bulb, symbolizing an idea, is depicted in a yellow speech bubble, while the brain, representing thinking, is shown in a blue speech bubble. A dotted line connects the two, suggesting the flow of ideas from conception to processing. The image is commonly used to represent creativity, innovation, and problem-solving. Knowledge vectors Idea and Thinking Concept with Light Bulb and Brain Icons. This image illustrates the concept of idea generation and thinking, represented by a light bulb and a. This image illustrates the concept of idea generation and thinking, represented by a light bulb and a brain. The light bulb, symbolizing an idea, is depicted in a yellow speech bubble, while the brain, representing thinking, is shown in a blue speech bubble. A dotted line connects the two, suggesting the flow of ideas from conception to processing. The image is commonly used to represent creativity, innovation, and problem-solving.
Free with trial African-american happy smiling graduate in cloak and graduation cap. Joyful graduate celebrating. Education and graduation concept. Vector flat design illustration isolated on white background. Knowledge vectors African-american graduate vector illustration. African-american happy smiling graduate in cloak and graduation cap. Joyful graduate celebrating. Education and. African-american happy smiling graduate in cloak and graduation cap. Joyful graduate celebrating. Education and graduation concept. Vector flat design illustration isolated on white background.
Free with trial Girl reads geography textbook sitting on stack of books flat color vector illustration. Child discovers science concept icon on white. Knowledge vectors Girl reads geography textbook sitting on books image. Girl reads geography textbook sitting on stack of books flat color vector illustration. Child discovers. Girl reads geography textbook sitting on stack of books flat color vector illustration. Child discovers science concept icon on white
Free with trial Children Book Day Label Flat Cartoon Hand Drawn Templates Background Design Illustration. Knowledge vectors Children Book Day Label Flat Cartoon Hand Drawn Templates Background Illustration. Children Book Day Label Flat Cartoon Hand Drawn Templates Background Design. Children Book Day Label Flat Cartoon Hand Drawn Templates Background Design Illustration
Free with trial Love heart9. Heart made of words. A vector illustration. Knowledge vectors Love heart9. Heart made of words. A vector illustration
Free with trial Feather pen ink and ink bottle icon illustration isolated vector sign symbol. Feather pen ink icon illustration isolated vector sign symbol. Knowledge vectors Feather pen ink and ink bottle icon illustration isolated vector sign symbol. Feather pen ink icon illustration isolated vector sign symbol
Free with trial Books graphics -book week events. Modern flat vector concept illustrations of reading people - a group of men and women reading and sharing books and e-books on tablets sitting surrounded by plants. Knowledge vectors Books - flat vector illustration in corporate Memphis style. Books graphics -book week events. Modern flat vector concept illustrations of reading people - a. Books graphics -book week events. Modern flat vector concept illustrations of reading people - a group of men and women reading and sharing books and e-books on tablets sitting surrounded by plants
Free with trial Archaeology. Ancient history scientist or paleontologist. Knowledge. Of an ancient civilization culture. Prehistoric times research. Flat vector illustration. Knowledge vectors Archaeology. Ancient history scientist or paleontologist. Knowledge. Of an ancient civilization culture. Prehistoric times research. Flat vector illustration
Free with trial Book with green hardback colorful icon vector illustration isolated on white background. Knowledge vectors Book with green hardback colorful icon vector illustration isolated on white background.
Free with trial Illustration of a funny hare sitting on a chair on a white background. For children's goods and textiles. Knowledge vectors Rabbit cartoon character sitting on a chair. Illustration of a funny hare sitting on a chair on a white background. For children's goods and textiles. Illustration of a funny hare sitting on a chair on a white background. For children's goods and textiles.
Free with trial Online learning icon. Trendy Online learning logo concept on white background from E-learning and education collection. Suitable for use on web apps, mobile apps and print media. Knowledge vectors Online learning icon. Trendy Online learning logo concept on white background from E-learning and education collection. Suitable for use on web apps, mobile
Free with trial White Graduate and graduation cap icon isolated on white background. Orange and pink gradient circle background. Vector. Knowledge vectors White Graduate and graduation cap icon isolated on white background. Orange and pink gradient circle background. Vector.
Free with trial Happy cute kids study many shape polygon. Knowledge vectors Happy cute kids study many shape polygon
Free with trial Stylized tree with leaves and speech bubble icons, representing communication, learning, and growth in a flat, colorful design. Knowledge vectors Colorful Icon Tree with Speech Bubbles Representing Ideas and Communication Network Concept. Stylized tree with leaves and speech bubble icons, representing. Stylized tree with leaves and speech bubble icons, representing communication, learning, and growth in a flat, colorful design.
Free with trial Back to school vector with green title block over seamless pattern of globes with flags. Perfect for school themed design and print. Knowledge vectors Vector school template with globe pattern and title. Back to school vector with green title block over seamless pattern of globes with flags. Perfect for school. Back to school vector with green title block over seamless pattern of globes with flags. Perfect for school themed design and print
Free with trial E-learning or online education, home school on computer laptop screen, distance learning, online course concept, new normal. Knowledge vectors Online education or distance online learning concept. E-learning or online education, home school on computer laptop screen, distance learning, online course. E-learning or online education, home school on computer laptop screen, distance learning, online course concept, new normal
Free with trial Modern vector Human silhouette logotype isolated on white background. Green and blue colors. Man head and leaves. Health symbol. Concept design for web, clinic, school, education. Creative icon sign. Knowledge vectors Modern vector Human silhouette logotype isolated on white background. Green and blue colors. Man head and leaves. Health. Symbol. Concept design for web, clinic. Modern vector Human silhouette logotype isolated on white background. Green and blue colors. Man head and leaves. Health symbol. Concept design for web, clinic, school, education. Creative icon sign
Free with trial Stack of paper close and open books with hard cover and bookmarks lay and stand. 3D render illustration set of literature pile for school education and reading concept. Bookshop or library objects. Knowledge vectors Stack of paper close and open books with hard cover and bookmarks lay and stand. 3D render illustration set. Of literature pile for school education and reading. Stack of paper close and open books with hard cover and bookmarks lay and stand. 3D render illustration set of literature pile for school education and reading concept. Bookshop or library objects.
Free with trial Vintage Sphynx Cat Holding Book Illustration. Knowledge vectors Vintage Sphynx Cat Holding Book Illustration. Vintage Sphynx Cat Holding Book Illustration
Free with trial Two paper books line and solid icon, online education concept, textbooks sign on white background, Books collection icon in outline style for mobile concept and web design. Vector graphics. Knowledge vectors Two paper books line and solid icon, online education concept, textbooks sign on white background, Books collection icon. In outline style for mobile concept. Two paper books line and solid icon, online education concept, textbooks sign on white background, Books collection icon in outline style for mobile concept and web design. Vector graphics
Free with trial Back to school poster. Background or educational banners, social media graphics, and store branding. Knowledge vectors Back to school poster. Background or educational banners, social media graphics, and store branding.
Free with trial Boy In School Uniform With The Book. Simple Design Illustration In Cute Fun Cartoon Style Isolated On White Background. Knowledge vectors Boy In School Uniform With The Book. Simple Design Illustration In Cute Fun Cartoon Style Isolated On White Background
Free with trial Logo for study with creative element concept Premium Vector part 1. Creative design idea. Knowledge vectors Logo for study with creative element concept Premium Vector part 1. Creative design idea
Free with trial This image was created using Generative AI. Minimalist line art icon depicting an instructor giving a presentation to two seated students using a flipchart. Ideal for education and training concepts. Knowledge vectors Presentation Icon Showing Teacher Explaining To Students With Flipchart. This image was created using Generative AI. Minimalist line art icon depicting an. This image was created using Generative AI. Minimalist line art icon depicting an instructor giving a presentation to two seated students using a flipchart. Ideal for education and training concepts
Free with trial Back to school utensils cartoons. Back to school utensils books cartoons vector ilustration graphic design vector illustration graphic design. Knowledge vectors Back to school utensils cartoons. Back to school utensils books cartoons vector ilustration graphic design vector illustration graphic design
Free with trial Accredited online courses with official study program tiny person neubrutalism concept. Trust and quality approval for academic platform in web vector illustration. Digital remote learning system. Knowledge vectors Accredited online courses with study program tiny person neubrutalism concept. Accredited online courses with official study program tiny person neubrutalism. Accredited online courses with official study program tiny person neubrutalism concept. Trust and quality approval for academic platform in web vector illustration. Digital remote learning system.
Free with trial Black outline lightbulb icon with sparkling stars representing idea, innovation, creative thinking, and solution on white background. Knowledge vectors Minimalist Outline Lightbulb Idea Spark Innovation Creative Concept Icon. Black outline lightbulb icon with sparkling stars representing idea, innovation. Black outline lightbulb icon with sparkling stars representing idea, innovation, creative thinking, and solution on white background.
Free with trial A simple black and white vector icon of an open book displaying a medical cross symbol. Knowledge vectors Medical Book Icon Featuring a Cross Symbol for Healthcare Education and Research Vector Illustration. A simple black and white vector icon of an open book. A simple black and white vector icon of an open book displaying a medical cross symbol