5091696
9780883855515
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Previously published separately, the two books aha! Gotcha and aha! Insight are here combined as a single volume. The aha! books, as they are referred to by fans of the author Martin Gardner, contain 144 wonderful puzzles from the reigning king of recreational mathematics.Gardner, Martin is the author of 'Aha! Aha! Gotcha aha! Insight', published 2006 under ISBN 9780883855515 and ISBN 0883855518.
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