In this book one can find historical background of Rabbi Ozjasz Thon’s various interests, and it examines closely the main fields in which he was active and creative. Ozjasz Thon was a fascinating figure in the Jewish-Polish arena at the first third of the twentieth century. He was present and active in almost any field of the Jewish life in Poland in those days. He was a preacher and a rabbi, a political leader, a philosopher, a sociologist, an essayist, and a publicist.