Math, logic, and word puzzles, with insights into the minds of the masterminds. A game book of mental recreations, many of them taken from the private collections of members of MENSA, the exclusive high-I.Q. society.
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Book Description Doubleday, 1972. Hardcover. Book Condition: New. Never used!. Bookseller Inventory # P110385057687
Book Description Doubleday. Hardcover. Book Condition: New. 0385057687 New Condition. Bookseller Inventory # NEW7.1057204