Marquette University Press is pleased to reissue William Miller's pioneering history of the Catholic Worker movement. Originally published thirty years ago, it was the first book to draw upon the movement's archives at Marquette University, to which Dorothy Day had granted Miller access soon after the records' arrival in March of 1962. Subsequently, works by Miller and other scholars (including his students) have augmented our knowledge of the Catholic Worker's history, major figures, philosophical and spiritual underpinnings, and present ministries. There are now over 150 Catholic Worker communities spread across the United States and in Australia, Canada, Europe, Mexico, and New Zealand.