A classic of American thought, this is an extraordinary study of human spirituality in all its forms and one of the most profound works of Psychology ever written. James was one of the first thinkers to seriously examine the psychology of religious faith and where he led, both Jung and Freud would follow. The Routledge Classics edition makes available in paperback for the first time the Centenary Edition published by Routledge in 2002 with new introductions on the historical and contemporary significance of James' work and a foreword by the author's grandson, Micky James.

William James (1842-1910). Born in New York, a brother to the novelist Henry James, William James was a founder of American experimental psychology and of the pragmatic school of philosophy.