### Why did I love this book?

This book is out to trick you. It presents itself as a compendium of charming puzzles and brain teasers that will make you scratch your head until you suddenly yell “Aha!”. But far greater trickery lies ahead, because these riddles are devilishly constructed to lead you --- with no additional effort --- to the most profound discovery in the history of mathematical logic. That discovery is Godel’s Incompleteness Theorem, which says that mathematics (and indeed even just arithmetic) defies logical description and therefore transcends mere logic. There are more things in heaven and earth than are dreamt of in your logical reasoning.

You could understand Godel’s Theorem by reading Godel, but that’s hard. Reading Smullyan is easy. It’s better than easy; it feels like playing a wonderful game against a bright and very funny opponent.

As a side note, this was the book that inspired me, decades after I’d read it, to imagine that I could teach economics through a series of brain teasers in my own book, *Can You Outsmart an Economist? * Smullyan died just as that book came out. I wish I could have sent him a copy.

3 authors picked What Is the Name of This Book? as one of their favorite books, and they share why you should read it.

"The most original, most profound, and most humorous collection of recreational logic and math problems ever written." — Martin Gardner, Scientific American

"The value of the book lies in the wealth of ingenious puzzles. They afford amusement, vigorous exercise, and instruction." — Willard Van Orman Quine, The New York Times Book Review

If you're intrigued by puzzles and paradoxes, these 200 mind-bending logic puzzles, riddles, and diversions will thrill you with challenges to your powers of reason and common sense. Raymond M. Smullyan — a celebrated mathematician, logician, magician, and author — presents a logical labyrinth of more than 200…

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