Originally published in 1924, the book chronicles Wickland's experiences as a psychiatrist and spiritual researcher, focusing on his encounters with discarnate spirits and his exploration of the afterlife. Wickland's interest in the spiritual realm began when he noticed unusual behaviors and symptoms in some of his patients during his psychiatric practice. He observed that certain individuals exhibited personality changes, speaking in different voices and exhibiting knowledge of unfamiliar languages or historical periods. Intrigued by these phenomena, Wickland began to investigate the possibility of spirit possession. Through his work, Wickland developed a technique known as "obsession" or "spirit release" therapy. He would induce a deep trance state in his patients and communicate with the possessing spirits directly, allowing them to express their thoughts and emotions through the patient's body...In "Thirty Years Among the Dead," Wickland presents numerous case studies and recounts his encounters with various spirits possessing his patients. He describes the struggles and challenges he faced while dealing with these spirits, including their resistance, anger, and confusion. Wickland also explores the nature of the afterlife, discussing topics such as the process of dying, the existence of different realms or planes, and the experiences of spirits who have not yet crossed over..."Thirty Years Among the Dead" has been both praised and criticized for its unconventional approach to psychiatry and its spiritual themes. While some have regarded Wickland's work as groundbreaking and insightful, others have dismissed it as unscientific and based on subjective experiences. Nonetheless, the book remains a notable contribution to the field of spiritual research and offers a unique perspective on the interaction between the physical and spiritual realms.-Print ed.