""Mediums and the Development of Mediumship"" by Robert G. Chaney is a comprehensive guide to the history, theory, and practice of mediumship. The book provides an in-depth exploration of the role of mediums in spiritualism, including their abilities, techniques, and the challenges they face. It covers the development of mediumship from its early origins to modern times, including the famous mediums of the past and present. The author also delves...