This unique sourcebook for map lovers is newly revised in a third edition that includes more maps than ever before. In addition to a profusion of road maps, aerial maps, geological maps, historical maps, weather maps, nautical maps, military maps, census maps, and astronomical maps, this third revised edition contains: the most current maps of Russia and Eastern Europe; a new section on the age of exploration; the most up-to-date information about map software; a completely new section on how to have a professional map made; and the latest information about the new generation of maps based on the 1990 census.