As more and more geographical, celestial and nautical discoveries have been made, so the need for adequately recording them has grown. As man probes the atmosphere, the seas and the depths of the earth itself, his findings seek expression in forms easy to transmit and understand universally. Christie McFall, a cartographer of many years, indicates the significance of maps through the ages with special emphasis on modern times. Incorporating descriptions of the cartographer's tools and methods, she tells of weather maps, relief maps, nautical and topographic charts, even political and census maps. Those who have nodded absently at the TV weather girl will now understand the linguistics of cold fronts and warm fronts and, along with weather symbols, should be able to interpret many other maps via the symbol charts included.