The Techniques of Astral Projection by Robert Crookall – Classic Guide to Out-of-Body Experiences (Used Paperback)
 
The Techniques of Astral Projection by Robert Crookall is a pioneering work on the phenomenon of out-of-body experiences (OBEs), often referred to as astral projection. Drawing on case studies, personal testimonies, and spiritual research, Crookall categorizes and explains the methods by which individuals have reported separating consciousness from the physical body.
This groundbreaking book, first published in the mid-20th century, was instrumental in bringing parapsychological phenomena into wider public discussion. Crookall examines recurring stages in the projection experience and offers a methodical, non-sensationalist guide to understanding and approaching astral travel.