'Calvin and the Later Reformation' by Keith Randell is an insightful study of John Calvin's pivotal role in the Protestant Reformation, exploring his theological legacy and the spread of Calvinism across Europe.

Keith Randell's 'Henry VIII and the Reformation in England' is an insightful exploration of the king's role in transforming England's religious landscape. This book offers a detailed look at the political and personal dynamics behind the English Reformation, making it a must-read for history enthusiasts.