How did the intellectual and theological framework of the Mather family shape the trajectory of American Puritanism over its first century? Robert Middlekauff, a historian of American culture, examines the lives and writings of Richard, Increase, and Cotton Mather to argue that Puritanism was a more dynamic and intellectually rigorous system than historical narratives of secularization suggest. By analyzing private papers, sermons, and published works, he demonstrates how these three generations navigated the tension between traditional faith and the emerging influences of science and reason.

Historians and scholars of early American religious history frequently cite this work as a foundational text for understanding the intellectual depth of the Puritan ministry. Readers often note the academic density of the prose, which provides a rigorous look at the theological evolution of the seventeenth and eighteenth centuries.