Free images results:

Educate pictures, stock photos and images


Book Royalty Free Stock Image
Author: Freds
Books Stock Photography
Author: Freds
Pencils Stock Photography
Author: Chuew

Also, here are some commercial RF-licensed images that match your search criteria:  
Educate Stock Image
Author: Baz777

Explore more commercial options: More Educate Stock Illustrations & Vectors | More Educate Stock Video Footage