A complete guide to units of measurement around the world and throughout history, presenting some 2,000 units and equivalents for measuring length, surface area, capacity, mass, and volume, as well as measures used in poetry, music, and bookmaking, and units expressing flow of water, energy, radiation, temperature, viscosity, and speed. Includes separate sections on the metric system and electrical units. Diagrams or graphs would have been helpful. Annotation copyright by Book News, Inc., Portland, OR