"Luther. Volume 4 of 6" is a research work devoted to the life and work of the great reformer Martin Luther. The authors Grizar and Hartmann put a lot of work into revealing the deep aspects of Luther's personality, his interaction with religious institutions and the social environment of his time. The book offers the reader an advanced analysis of Luther's religious beliefs, his influence on the Reformation and the further development of Christianity. Thanks to extensive research of facts and events, the authors reveal various sides of the history of the Reformation, which remain relevant to this day. "Luther. Volume 4 of 6" is a must-read for anyone interested in the history of Christianity and religious transformations in Europe in the 16th century.