This standard work provides reliable, concise, and professional guidance on the life, work, and impact of Martin Luther. In 64 individual articles written by 30 renowned Luther scholars, all essential aspects are presented in detail and in an understandable manner. The articles carried over from previous editions have undergone thorough revision and updating. Additionally, nine new articles have been added. The book is of interest to professionals and enthusiasts of theology, as well as related disciplines such as history, German studies, or philosophy. Numerous cross-references and detailed indexes facilitate the engagement with and deepening of independent Luther studies.