The author, a deliverance minister of long experience, was associated with Derek Prince Ministries (USA), a well-known name in this field. The book is aimed at Christians, and, like other such books, is concerned with Christians freeing themselves (self-deliverance), or obtaining release, from oppression by spiritual forces. Thus, it treats questions of recognising demonic influences, the sources and authority of such forces (occult activity, personal sins, etc.), and it relates many stories, from the author’s experience, which outline the origins of oppression, and subsequent release, some less usual than the norm. Also different, perhaps, are passages relating to vampirism, the nature and force of iniquity, obsessive-compulsive disorder, and homosexuality.