The Modern Library Giant series provides the only format in which it is possible to gather together in a single volume the works of Sigmund Freud. Purchased separately the six books here included would cost $20.50, and still would be lacking the brilliant interpretation and biography of Sigmund Freud by Dr. A. A. Brill, who for a quarter of a century has been the translator and standard-bearer of Freudian theories in America.  No psychologist has so completely transformed our conceptions of the role of the unconscious. Certainly no psychologist has had so profound an influence on our times as has Sigmund Freud, nor has there ever been one so frequently quoted. His works, available in a single unabridged volume, are required reading for scientists, students and the general public. To them this Giant volume is a boon and a necessity.