https://www.gettyimages.com/detail/photo/side-profile-of-traditional-wooden-library-card-royalty-free-image/1374216041?searchscope=image%2Cfilm

Another fun photo of "linked" strings wrapped around a library card catalog representing the links between ideas within a paper database.

https://www.gettyimages.com/detail/photo/traditional-wooden-library-card-catalog-cabinet-royalty-free-image/1379469553?searchscope=image%2Cfilm

fun photo of "linked" strings wrapped around a library card catalog representing the links between ideas within a paper database.