Michael Sattler has been called by his admirers and critics the most significant of the first-generation leaders of Anabaptism. This is a collection of documents by and about Sattler, edited by John Howard Yoder with introductions and extensive notes. It is the first volume in the Classics of the Radical Reformation, a series of Anabaptist and Free Church documents translated and annotated under the direction of the Institute of Mennonite Studies.