The Encyclopedia of American Industries (EAI) is a major business reference tool that provides detailed, comprehensive information on a wide range of industries in every realm of American business. Volume one provides separate coverage of 459 manufacturing industries. Volume two presents 545 essays covering the vast array of service and other non-manufacturing industries in the United States. Combined, these two volumes provide individual essays on every industry recognized by the U.S. Standard Industrial Classification (SIC) system. Both volumes of EAI are arranged numerically by SIC code for easy use. Additionally, each entry in the fourth edition includes the corresponding North American Industry Classification System (NAICS) code(s).