Both lightboxes and collections are used to save images. The collection is public – when it has images from at least 5 contributors online – and can therefore be viewed by anyone. If it has less than 5 contributors participating, it can be seen only if you use a direct link to it (not within the collections section). The person who chooses to manage a collection needs to select images on the same concept/topic/theme, give the collection the appropriate title, description and keywords. Once the collection has images from more than 5 contributors, it becomes available in the collections section and can be used as reference by anyone who finds it or performs topic related searches.The lightbox on the other hand is not public. It is a personal and private collection of images where you save images you are interested to download later. As compared to the collections, the lightboxes do not have to contain images on the same topic/theme/concept and their inclusion in the lightbox is randomly selected in searches by buyers interested to quickly and efficiently save images for later download. Sharing the lightbox with other users is optional for the owner. Designers can share or email the lightbox to their clients or fellow designers. A lightbox is not made public on the site regardless of the number of contributors from whom images were saved.