Peter Winkler, the renowned mathematician and puzzle expert, presents in this book his collection of puzzles that he has compiled over decades. Now you can enjoy more than 100 of the best (and some of the most challenging) mathematical puzzles ever published in a single volume. You should bring a love for mathematical thinking and persistence. However, no academic mathematical knowledge is required; an open-minded high school graduate has all the background knowledge needed. Reviews of the original edition: "Peter Winkler provides us with a wonderful collection of challenging mathematical thinking tasks - witty, accessible, surprising, and beautiful. This is undoubtedly the best collection of mathematical puzzles to have appeared in the last decade." Ronald Graham, President of the Mathematical Association of America. "Winkler's book is a treasure chest full of fascinating gems." Elwyn R. Berlekamp, co-author of "Winning Ways for your Mathematical Plays.".