Radical Religious Movements in Early Modern Europe (1980) examines Western European history during three crucial centuries of transition. He expands the concept of Reformation to cover all the movements of religious resurgence in the fifteenth, sixteenth and seventeenth centuries in Europe. Social, economic, political, literary and artistic developments are fully considered, alongside more strictly religious themes.

Radical Religious Movements in Early Modern Europe (1980) examines Western European history during three crucial centuries of transition. He expands the concept of Reformation to cover all the movements of religious resurgence in the fifteenth, sixteenth and seventeenth centuries in Europe. Social, economic, political, literary and artistic developments are fully considered, alongside more strictly religious themes.