Weather maps have made our atmosphere visible, understandable, and at least moderately predictable. In Air Apparent Mark Monmonier traces debates among scientists eager to unravel the enigma of storms and global change, explains strategies for mapping the upper atmosphere and forecasting disaster, and discusses efforts to detect and control air pollution. Fascinating in its scope and detail, Air Apparent makes us take a second look at the weather map, an image that has been, and continues to be, central to our daily lives.