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|  | | A Week in November
a sequel to Professor Conundrum Mysteries! that explores the relationship of math with astronomy, music, architecture, boat navigation, the space program, amusement rides, and more.
| |  | | Plausible Deniability
A well-kept U.S. Government secret (from 1945) is unraveled in 2008 when an unexploded bomb is discovered at a construction site in downtown Tokyo.
| |  | | Professor Conundrum Mysteries!
Professor Conundrum, an aged, brilliant Harvard professor solves real-life problems both big and small using mathematics.
| |  | | The Legend of Jia
A new and exciting board game, Jia, is explained and explored including its history and ancient Chinese roots
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