The new resource is designed to help spiritual directors and others use expressive arts in the context of spiritual direction. It is the latest book in the unique SDI series, designed for professional spiritual directors, but also useful for clergy, therapists, and Christian formation specialists. The Spiritual Directors International Series - This book is part of a special series produced by Morehouse Publishing in cooperation with Spiritual Directors International (SDI), a global network of some 6,000 spiritual directors and members.