A classroom perennial and comprehensive guide, America's Religions lays out the background, beliefs, practices, and leaders of the nation's religious movements and denominations. The fourth edition, thoroughly revised and updated by Peter W. Williams, draws on the latest scholarship. In addition to reconsidering the history of America's mainline faiths, it delves into contemporary issues like religion's impact on politics and commerce; the increasingly high profile of Buddhism, Hinduism, and Islam; Mormonism's entry into the mainstream; and battles over gay marriage and ordination.