Angels : God's Secret Agents by Billy Graham (1994, Hardcover) "Angels: God's Secret Agents" by Billy Graham is a 1994 hardcover book that delves into the topic of angels and spirit guides in the context of the body, mind, and spirit genre. Published by Nelson Incorporated, Thomas, this revised edition explores the role of angels as divine messengers and helpers in our lives. Written in English, this book offers insights and reflections on angels and how they can guide and protect us in our spiritual journey. With a compact size of 7.8 inches in length, 5 inches in width, and 1 inch in height, this book is a valuable resource for those interested in the realm of angels and spiritual guidance.