For years, Randall Mann has been hailed as one of contemporary American poetry's most daring formalists, expertly using craft as a way of exploring racy subjects with trenchant wit and aplomb. His new collection, Proprietary, depicts with the insights of a longtime insider the culture of corporate America, in which he's worked for years, intertwined with some of his tried-and-true subjects, including gay life in the wildly disparate worlds of San Francisco and northern Florida.