Sigmund Freud died in his 80's, having personally conducted during his adult years an extraordinarily varied and extensive correspondence with family, associates, critics, admirers, patients, and friends all over the world. Ernst Freud has selected these letters (from almost 4,000 available) so that the words of his father will speak for themselves; the son, as editor, has inserted nothing of himself into the collection -- no ""running commentary"" or historical reflections -- except an occasional explanation in a simple footnote. This is not a biography, nor an attempt to evaluate the letter-writer as a scientist. The purpose is to show the Elder Freud as a ""percipient, thinking, battling human being...the breadth of his nature, the passion and single-mindedness not only of the young man in love but of the mature man in his lifelong search for scientific truth."" No matter what one's view of psychoanalysis, this revelation of Freud's personality should come as a clarification to laymen and professionals alike.