Discovering the Heart of the Reformation -- The Unquenchable Fire, a remarkably accessible introduction to the historic era, brings to life the movement's most colorful characters -- Luther, Ulrich Zwingli, John Calvin, the Puritans -- and examines their ideas, showing the profound and personal relevance of Reformation thinking for Christians today. Also included are an in-depth Reformation timeline, a map of key places, dozens of legendary illustrations, and further reading suggestions.