This book contributes to the study of Ignatius' charism and to the ministries he initiated - in Christian education, foreign missions, and other fields. It presents his four major writings: the Autobiography and Spiritual Exercises in their entirety, and his Spiritual Diary and Constitutions of the Society of Jesus in selections so chosen as to give an overview of each work. It also offers ten samples of his almost 7000 letters. Ample explanations are given in the introductions and commentaries by way of notes.