William James's interest in psychical research has typically been neglected or marginalised by James scholars and biographers, most of whom have passed over the roughly forty years of his involvement in psychical research and the question of its impact on the works that made him famous, e.g. 'Principles of Psychology' and 'Varieties of Religious Experience', in seemingly embarrassed silence.
Although not primarily written for an academic audience, 'Ghost Hunters' is an interesting contribution to helping illuminate this important but hitherto largely unexplored chapter in the life and work of one of the greatest and most influential minds of the late 19th and early 20th Centuries. Deborah Blum, a science journalist and Pulitzer Prize winner, explicitly takes the perspective of the outsider with no previous interest in psychical research, which seems to make her contribution particularly interesting in so far as personal investments and biases have typically been among the most stubborn confounding variables in the science business whenever concerned with a certain class of unusual human experiences.
To novices of the study of the history of science, Blum's compilation of excerpts from letters and publications documenting certain goings-on not necessarily apt to flatter Wilhelm Wundt's famous disciples (Münsterberg, Hall, Titchener, etc.) and other eminent contemporaries of James, is likely to smack of conspiracy theory. To the sociologist and historian of science, 'Ghost Hunters' gives much food for thought and provides potentially rich material for the study of another hitherto neglected field of research, namely the social dynamics in academia, particularly on the fringes of established sciences.
Despite sometimes serious flaws (which may, however, to a certain degree be forgivable in a popular book), 'Ghost Hunters' deserves a place on the bookshelf of everyone interested in the history of psychology, psychical research, and the history, philosophy and sociology of science in general. It is compulsory reading, or at least a good starting point, for any James scholar and biographer who may wish to conduct research on the place of psychical research in the psychological and philosophical systems of William James, which then will have to be documented more thoroughly and published in a more scholarly style than in the present book.