__Winner of the Pulitzer Prize for Biography in 1936__This out- of-print classic returns, in a new paperback edition, through the Vanderbilt Library of American Philosophy. Designed to serve as both a systematic account of James's development and a repository of selections from his unpublished writings, the one-volume work (which forms the basis for this new paperback edition) offers a brief and convenient sourcebook of James's thought, set forth in terms that require no previous familiarity with technical problems of philosophy and psychology.