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by Dennis Elliott Shasha (Author)
Dr. Ecco is a mathematical detective and puzzle solver. In this book readers are invited to join him in solving nearly 40 puzzles inspired by methods in computer science and mathematics, including The Tower of Lego, the Odd Doors Problem, Spies and Double Agents, Gossiping Defenders, Code Breaking, and many more.
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A small yet very thoughtful devotional book. A beautiful way to promote seeing God everyday in everything.
Came in fine
Me gusta mucho el libro. Gracias
Love it
Will be fun to color
