The Swiss Reformation was a seminal event of the 16th century and the source of a distinctive Protestant culture whose influence spread across Europe from Transylvania to Scotland. This book provides the first comprehensive study of the subject in any language. The author argues that the movement must be understood in terms of the historical evolution of the Swiss Confederation, its unique and fluid structures, the legacy of the mercenary trade, the distinctive character of Swiss theology, the powerful influence of Renaissance humanism, and, the roles played by the dominant figures, Huldrych Zwingli and Heinrich Bullinger.