Realm of Numbers Author:Isaac Asimov The most important tool of science is mathematics. This clear and readable book shows even the non-mathematical reader how to use this tool with understanding. Starting with the most basic sort of finger counting, Isaac Asimov proceeds to the pleasures of the abacus, where numbers take physical shape, and on to the ideas of zero, fractions, an... more »d the decimal system...His concern is not the mechanical techniques one learns from textbooks, but the whys and wherefores behind them.« less