Most scholars dismiss research into the paranormal as pseudoscience, a frivolous pursuit for the paranoid or gullible. Even historians of religion, whose work naturally attends to events beyond the realm of empirical science, have shown scant interest in the subject. But the history of psychical phenomena, Jeffrey J. Kripal contends, is an untapped source of insight into the sacred and by tracing that history through the last two centuries of Western thought we can see its potential centrality to the critical study of religion.

Kripal grounds his study in the work of four major figures in the history of paranormal research: psychical researcher Frederic Myers; writer and humorist Charles Fort; astronomer, computer scientist, and ufologist Jacques Vallee; and philosopher and sociologist Bertrand Méheust. Through incisive analyses of these thinkers, Kripal ushers the reader into a beguiling world somewhere between fact, fiction, and fraud. The cultural history of telepathy, teleportation, and UFOs; a ghostly love story; the occult dimensions of science fiction; cold war psychic espionage; galactic colonialism; and the intimate relationship between consciousness and culture all come together in Authors of the Impossible, a dazzling and profound look at how the paranormal bridges the sacred and the scientific.

The more than fifty articles, essays, and reviews in this volume, collected here for the first time, were published by William James over a span of some twenty-five years. The record of a sustained interest in phenomena of a highly controversial nature, they make it amply clear that James's work in psychical research was not an eccentric hobby but a serious and sympathetic concern. James was broad-minded in his approach but tough-minded in his demand that investigations be conducted in rigorous scientific terms. He hoped his study of psychic phenomena would strengthen the philosophy of an open-ended, pluralistic universe that he was formulating during the same period, and he looked forward to the new horizons for human experience that a successful outcome of his research would create.

Robert A. McDermott, in his Introduction, discusses the relation of these essays to James's other work in philosophy, psychology, and religion.

Psychic Investigators examines British anthropology’s engagement with the modern spiritualist movement during the late Victorian era. Efram Sera-Shriar argues that debates over the existence of ghosts and psychical powers were at the center of anthropological discussions on human beliefs. He focuses on the importance of establishing credible witnesses of spirit and psychic phenomena in the writings of anthropologists such as Alfred Russel Wallace, Edward Burnett Tylor, Andrew Lang, and Edward Clodd. The book draws on major themes, such as the historical relationship between science and religion, the history of scientific observation, and the emergence of the subfield of anthropology of religion in the second half of the nineteenth century. For secularists such as Tylor and Clodd, spiritualism posed a major obstacle in establishing the legitimacy of the theory of animism: a core theoretical principle of anthropology founded in the belief of “primitive cultures” that spirits animated the world, and that this belief represented the foundation of all religious paradigms. What becomes clear through this nuanced examination of Victorian anthropology is that arguments involving spirits or psychic forces usually revolved around issues of evidence, or lack of it, rather than faith or beliefs or disbeliefs.