The title of this book (not to mention the fact that it presents an English translation of a book recently published in French) speaks for itself in making clear the intriguing character of the topic. It might well be called a study of the spirituality of time in a particular religious movement but it also seeks to contribute to ways of defining the early modern age. As the use of the term ‘Calvinism’ in the translation indicates, this book engages with the famous Weber argument about Calvinism and capitalism. The context is Engammare's statement that ‘[i]n the fifteenth and sixteenth centuries, people's relation to time and space changed dramatically’ (p. 5). His focus is the ways in which early modern Calvinism attended to punctuality and the measuring of time as a discipline expressing spirituality, and the development of a particular kind of attention to the careful and conscious use of time for which each Christian would be held accountable before God. The book ranges from Calvin's own schedule and the Geneva of his day, through ways of ‘saving time’ and the rise and decline of Huguenot calendars, to comparisons of daily agenda and literary works of Calvinists and their contemporaries. Engammare explores these sources to make the point that this branch of Protestants in particular developed a distinctive ‘ordering of time’ which links up in significant ways with the character of discipline highlighted by the Weber thesis. The wide scope of the topic makes for a fascinating and provocative book; under the circumstances, it is natural that some details are not precisely accurate. For example, my own research supports the idea that the schedule of worship in early Protestant Geneva was in fact far more orderly than Engammare indicates and that Calvin's role in the developing relationship of time and spirituality in the early modern world was more complex.