The Dimensions of Dreams summarizes in one encyclopedic volume the vast knowledge modern science has been able to amass about the world of dreams since Freud first published his groundbreaking Interpretation of Dreams in 1900. Ole Vedfelt reviews in depth the large body of research about dreams that has found its way into the literature, from the work of Freud and Jung to that of many other important investigators, including Alfred Adler, Erich Fromm, Montague Ullman, Calvin Hall, and Medard Boss.

Vedfelt also discusses dreamwork in gestalt therapy and psychodrama, and describes the results of modern laboratory investigations of sleep and dreaming.