John Flavel was a nonconformist minister, survivor of religious persecution, prolific writer, and influential voice in seventeenth-century England. Yet despite his impact on figures such as Matthew Henry, Jonathan Edwards, George Whitefield, John Newton, William Wilberforce, and Charles Spurgeon, his life and thought were long overlooked. In John Flavel: Puritan Life and Thought in Stuart England, Brian H. Cosby recovers this important Puritan for modern readers. Combining historical biography with theological analysis, Cosby examines Flavel’s ministry, personal losses, cultural setting, pastoral priorities, and enduring influence in Britain and the American colonies. The result is an accessible scholarly introduction to a theologian known for a clear mind, warm heart, and practical concern for Christian faithfulness. This volume is essential reading for students of Puritanism, church history, historical theology, and early modern religious life.