A great range of mind bending puzzles. Great to look at over breakfast. ( )

Innovator Ivan Moscovich's number puzzles are as spectacular looking as they are stimulating. Moscovich has been designing and inventing inspired puzzles, games, toys, teaching aids, and hands-on science museum exhibits for the past 50 years. "In collecting and creating puzzles," writes Moscovich, "I favor those that are more than just fun, preferring instead puzzles that offer opportunities for intellectual satisfaction and learning experiences, as well as provoking curiosity and creative thinking."
For the Mastermind Collection, Moscovich has gathered many of his ingenious inventions, as well as imaginative mind bogglers created by other remarkable puzzlemakers. This series covers a wide range of mathematical ideas, through both classic and original puzzles, games, problems and more.
The Shoelace Problem and Other Puzzles includes "Stopgaps," which illustrates that estimating angles is a useful skill nomatter whether you're parking cars or solving puzzles; "Commuter Computation," tests of your ability to calculate averages; and "Clown and Company," a game that enables you to create an endless number of pleasing symmetrical and non-symmetrical abstract patterns.
These imaginative puzzles are a treat for the eye and the mind.