Daniel Sempere from The Shadow of the Wind by Carlos Ruiz Zafon (Only someone who loves books would be that determined to find the author of a good book.)
Cassandra Mortmain from I Capture the Castle by Dodie Smith (And she uses her book-loving skills to great use in keeping her journal!)
Thursday Next from The Eyre Affair (and others) by Jasper Fforde (Thursday loves books in a whole different way - by protecting them behind the scenes!)
Catherine Morland from Northanger Abbey by Jane Austen (Reading too many Gothic novels can lead you to the wrong conclusions. . .)
Jo March from Little Women by Louisa May Alcott (Jo scribbling away in her attic is an image I have always loved.)
Matilda Wormwood from Matilda by Roald Dahl (Anyone who needs to cart home library books in a wagon is a definite bibliophile!)
Hermione Granger from the Harry Potter series by J.K. Rowling (This list would not be complete without Hermione. Her love of books is legendary - and possibly annoying. :))