Complementary and alternative healing encompass a wide range of practices that share a common ground: the belief that our physical well-being is inextricably linked to an unseen world beyond our physical senses. Our view of that world can be traced to two key thinkers: Emanuel Swedenborg and Franz Anton Mesmer.

Who were these men, and what shaped their thought? How did their ideas capture the public imagination? How did they speak to movements as diverse as utopianism, Spiritualism, psychic healing, and homeopathy? Historian John S. Haller traces the threads of Swedenborg’s and Mesmer’s influence through the history of nineteenth-century medicine, illuminating the lasting impact these men have had on concepts of alternative healing.

John S. Haller Jr.,emeritus professor of history and medical humanities at Southern Illinois University Carbondale, has written a dozen books on subjects including race, sexuality, and the history of medicine. He is former editor of Caduceus: A Humanities Journal for Medicine and the Health Sciences and, until his retirement at the end of 2008, served for eighteen years as vice president for academic affairs for the Southern Illinois University system.