Reinventing the Wheel, Jessica Helfand. Princeton Architectural Press, 2002.
This is a picture book of volvelles, wheel calculators. You typically set a pointer to a particular value, and windows or the edge of the wheel reveal an answer. If you have any interest in job aids, or pre-computer calculators, you will probably enjoy the history and pictures this book contains. (Reviewed Sept., ’03)
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Review – Reinventing the Wheel
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