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An adventure story series filled with suspense, mystery, and fantasy - for kids ages 9-12 and teens Peter, an exceptionally clever junior high school kid, is pu

Learning programming with one of “the coolest applications around”: algorithmic puzzles ranging from scheduling selfie time to verifying the six degrees of

Puzzled?! seamlessly fuses two traditional approaches to the study of philosophy at the introductory level. It is thematic, examining fundamental issues in epis

No amateur or math authority can be without this ultimate compendium of classic puzzles, paradoxes, and puzzles from America's best-loved mathematical expert. 3

An adventure story series filled with suspense, mystery, and fantasy - for kids ages 9-12 and teens Two years have passed since Peter and his friends went up ag