Adrienne von Speyr (1902-1967) was a Swiss medical doctor, convert to Catholicism, a mystic, wife and author of over 60 books on spirituality and theology. She collaborated closely with the renowned theologian Hans Urs Von Balthasar, her confessor for 27 years, and they co-founded the Community of Saint John. Her numerous writings, published by Ignatius Press, are recognized by leading theologians and writers as a major contribution to the mystical and spiritual writings of the Church. Among her most important works are Book of All Saints, Confession, The World of Prayer, Handmaid of the Lord, and The Passion from Within.