In 1951, a new type of publication appeared on newsstands--the physique magazine produced by and for gay men. For many men growing up in the 1950s and 1960s, these magazines and their images and illustrations of nearly naked men, as well as articles, letters from readers, and advertisements, served as an initiation into gay culture. The publishers behind them were part of a wider world of "physique entrepreneurs" men as well as women who ran photography...