“Menahem Glenn's classic study, Israel Salanter: Religious-Ethical Thinker, was a pioneering biography of one of the most creative and influential thinkers in the East European world of Torah scholarship. In his sober and carefully documented study, Glenn carefully described the life and ideas of R. Israel in their historical context as well as in the context of Jewish thought. By doing so, he opened the world of the East European Musar movement to the English speaking reader. Even after the publication of subsequent important works on R. Israel, Glenn's work remains a valuable resource and contains materials and information not available elsewhere.” -– Shaul Stampfer, Hebrew University “This volume is a classic in the study of the 19th century Musar movement and its leader Rabbi Israel Salanter. Not only is the reader presented with a critical study of the life and teachings of R. Salanter in English, but we also get a critical English translation of Salanter's major work the Iggereth Ha-Musar, the Epistle of Musar. The book fills an important lacuna in English for the serious student of the Musar movement. As this movement gains prominence in 21st century America, this classic volume gains new importance as a valuable tool in understanding Salanter and his teachings.” -– Zalman Alpert, Yeshiva University