What literature moves you? You can have an enormous thumbprint image of the works that speak to you. Cheryl Sorg, an artist in Boston, cuts up the covers and lines of great works of literature that appeal to individual readers:
Sorg works with her subjects to gather their favorite books, book quotes, song lyrics, movies, and anything culturally meaningful to them that can be found in text. Once Sorg has her list, she finds the corresponding text and cuts it up into tiny strands that she weaves and curves into the actual thumbprint.
I can immediately think of lines from Shardik, Anthem and So Long and Thanks for All the Fish that I'd choose. Which passages would you want on your thumbprint?