The Great Book of Cryptograms

300 secret scrambled codes for you to break, each one a quotation from a philosopher like Sigmund Freud, Benjamin Franklin, Henry David Thoreau, Jean-Paul Sartre, and 26 more! Tips will get you started. Bonus: Spectacular portraits of the philosophers. 128 pages, 30 b/w illus., 5 1/4 x 8 1/4.