Dr. Randy Lee Delp has taught the Bible and Christian literature for over forty years. As an educator, pastor, author, business man and out-of-the-box thinker, his interests and insights into first century literature led him onto a discovery about the Book of Enoch, which opened another realm of understanding about the spiritual world and the primary doctrines of Christianity and other religions. His doctoral dissertation has helped others to understand the Impact of the Book of Enoch on Christianity and Other Religions and his paraphrase of The Living Enoch: Chapter by Chapter brings life and insights that makes sense. His Christian background and personal experiences with the spirit realm led Dr. Delp on a search to learn what the Bible had to say about spirits. He brings sanity to the idea of a co-existing spiritual realm that cannot be seen or explained other than through the experiences of people. He links the spirit world to the physical through neuro-scientific studies about thoughts and bridges our thought life to words, emotions and behavior. The Study of Spirits authenticates one's belief in God and explains why we react and respond to adversity. He delves into personal encounters with spirits and gives the reader insight how to be free from the evil that plagues our world. Although written as a textbook, this book provides the reader, who is eager to know about the spiritual realm, a fresh and insight description of what exists beyond the physical.