Empire of the Sum: The Rise and Reign of the Pocket Calculator

Empire of the Sum: The Rise and Reign of the Pocket Calculator

Marsoni

M251S

$32.50

Get it in 3 business days with 1 day shipping. Friday, May 29

Empire of the Sum: The Rise and Reign of the Pocket CalculatorThe hidden history of the pocket calculator a device that ushered in modern mathematics, helped build the atomic bomb, and went with us to the moon and the mathematicians, designers, and inventors who brought it to life.

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It like a very dark chocolate brown/black. What I liked most about it is that you just pull it out of the box take the long plastic film off of it and it's ready to go. It has protective feet on the bottom. It's very attractive and it was so easy. It's so nice when you have a product you don't have to assemble.

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Reviewed in the United States on May 13, 2026