Sigmund Freud is one of the most influential 20th-century intellectuals in Europe and the United States. His innovative theories and unprecedented practices are topics worthy of extensive review, but just as fascinating are the events of his life and the origins of his core beliefs.

"Freud's World: An Encyclopedia of His Life and Times" organizes the important components of Freud's life and work in an encyclopedia format, enabling readers to quickly zero in on the particular ideas, individuals, and circumstances that contributed to his vast influence. Controversy about the scientific...