Three Contemporary Theories Author:Sigmund Freud Landmark study examines sexual aberrations, infantile sexuality and the transformations of puberty. A unique work, according to translator A. A. Brill, it is "unlike other works on sex...of interest not only to the student of abnormal manifestations [but also] indispensable to the psychologist, the anthropologist, sociologist, the jurist, and ab... more »ove all the teacher."« less