World War One: A Short History
Norman Stone
In a Sunburned Country
Bill Bryson
Straight People: A Spotter's Guide to the Fascinating World ...
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Mastering DynamoDB
Tanmay Deshpande
The Trachtenberg Speed System of Basic Mathematics
Jakow Trachtenberg
Dead Reckoning: Calculating Without Instruments
Ronald W. Doerfler
Short-Cut Math
Gerard W. Kelly
Speed Mathematics Simplified
Edward Stoddard
How to Calculate Quickly: Full Course in Speed Arithmetic
Henry Sticker
More Rapid Math: Tricks and Tips: 30 Days to Number Mastery
Edward H. Julius
Rapid Math: Tricks and Tips: 30 Days to Number Mastery