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Enter the wacky world of optical illusions with this complete, interactive, eye-illusion set.Beautifully illustrated, meticulously designed book has over 90 of the most amazing optical illusions ever published, with explanations of how and why they workMirror mazes, trompe l'oeil object pictures, 3-D thrillers, even instructions on how to make your own illusionsFull-color set comes with 3-D glasses, a spinning animation wheel, components to create all kinds of fascinating visual tricks and moreWritten by Reader's Digest EditorsPublication date: January, 2006This almost endless array of amusement for all ages will delight the mind – without the high-tech tricks of computers.
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Exercise your gray matter with these deviously clever number puzzles – the hot new export from Japan. More than 900 soduku puzzlesFill each empty box with a number – without repeating any number in a row, column or 3x3 gridIntroduced in Japan – now an international phenomenonChallenges logical thinking and reasoning skillsBy Michael RiosPublication date: November, 2005Test your mettle with these downright addicting puzzles – they're like crossword puzzles for people who love numbers!
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