Philip Melanchthon (1497 – 1560) is best known as the theologian of the Protestant Reformation, systematizing and defending much of Martin Luther’s works and creating an educational system based on them. He was instrumental in the writing of the Augsburg Confession, the most influential document of the Reformation. Melanchthon and Luther, of different temperaments, did not always agree but respected each other and became a formidable spearhead for the Reformation. Karl Ledderhose here provides a comprehensive biography of Melanchthon including his principle ideas and activities, so it also serves as a history of many important aspects of the Reformation.