The twenty-nine articles, essays, and reviews in this volume, collected here for the first time, were published by William James over a long span of years, from 1878 (twelve years prior to The Principles of Psychology) to 1906. Some are theoretical; others examine specific psychological phenomena or report the results of experiments James had conducted.

Written for the most part for a scholarly rather than a popular audience, they exhibit James's characteristic lucidity and persuasiveness, and they reveal the roots and development of his view on a wide range of psychological issues. As William R. Woodward notes in his Introduction, these essays "bring the reader closer to James's sources, thereby illuminating his indebtedness to tradition as well as his creative departure from it."