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speculative fiction
Simak's "The World That Couldn’t Be
z transforms
reaching from the Arctic Circle to Tierra del Fuego
What Is the Name of This Book? speculative fiction"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
