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ISBN 0894540017 / 9780894540011 / 0-89454-001-7
Publisher Scientific American
› Find signed collectible books: 'Aha! Insight'
aha! Insight challenges the reader's reasoning power and intuition while encouraging the development of "aha! reactions": those sudden, creative leaps of the mind leading to short, elegant solutions to seemingly impossible problems. A confounding collection of brain twisters in six catgories-- combinatorial, geometric, numerical, logical, procedural and verbal. [via]
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