Indispensable guide to understanding the social and cultural context of swimming pools in America, from the Progressive era bathhouses to the privatization of swimming and decline of municipal pools after desegregation in the 1950s. Wiltse traces the cultural valence of pools: from an effort to socialize immigrants and working class urban dwellers (early 20th century), to middle-class resorts of leisure and pleasure (the golden age of public pools in the 20s and 30s), to contested, racially segregated urban spaces (40s and 50s), and on through white flight and the emptying out of municipal pools -- of people, funding, significance, and eventually, of water. As a swimmer in NYC's public pools, I found this history to be an invaluable counterpart to my swimming, a reminder that pools, like subways and parks, are potentially an equalizing, democratic public space. My only complaint is that Wiltse does not consider the distinction, often falling along race and class lines, between swimming as bathing and competitive swimming. He suggests that the public pools were never meant for serious training or competition (that was relegated to private athletic clubs and the Ys), but that was not always the case (for example, the Astoria pool was the site of Olympic Trials in 36 and 64); and more importantly, it would be interesting to explore why these pools, some of them Olympic in size, never attracted wide athletic usage. How does race, urban planning, ideas of leisure and recreation, etc., play into this conspicuous absence? Still, what Wiltse does consider makes for an insightful exploration of American public life in the 20th century, told through the prism of swimming pools.