Do you really know a book from reading it just once? Annie and Chris weigh in on re-reading and why they do it--or don't. Is there a value in re-reading or is it a waste of time? Are there some books that deserve to be read more than once and others that don't? Also, move over, Schrödinger. We've got our own theoretical cat experiment. "Finding out what happens is the least part of reading." Mentioned this week: + Historia Regum Britanniae by Geoffrey of Monmouth + Little Women by Louisa May Alcott + An Old-Fashioned Girl by Louisa May Alcott + Rose in Bloom by Louisa May Alcott + Eight Cousins by Louisa May Alcott + the Harry Potter series by J. K. Rowling + the Chronicles of Narnia by C. S. Lewis + The Lord of the Rings by J. R. R. Tolkien + The Great Gatsby by F. Scott Fitzgerald + The Catcher in the Rye by J. D. Salinger + Brave New World by Aldous Huxley + To Kill a Mockingbird by Harper Lee + The Girl on the Train by Paula Hawkins + Station Eleven by Emily St. John Mandel + Paradise Lost by John Milton + The Human Condition by Hannah Arendt + The Supper of the Lamb by Robert Farrar Capon + The Sorrows of Young Werther by Johann Wolfgang von Goethe + Fates and Furies by Lauren Groff + Gone Girl by Gillian Flynn Check out Shelf Subscriptions, a new monthly book delivery service from The Bookshelf, on our website and sign up for fresh picks from Annie, Chris, and the rest of The Bookshelf staff!