Between the years 1906 and 1912, Jung practiced as a psychoanalyst, and his association with Freud was very close. Though their personal relationship became strained after the publication of Jung's book, Wandlungen und Symbole der Libido (1911-12), Jung continued to serve as president of the International Psychoanalytic Association until 1914. The present volume covers the period of Jung's close and enthusiastic collaboration with Freud and includes one of Jung's famous studies in word association which demonstrates Freud's influence even before they were working together. Originally published in 1975. The Princeton Legacy Library uses the latest print-on-demand technology to again make available previously out-of-print books from the distinguished backlist of Princeton University Press. These editions preserve the original texts of these important books while presenting them in durable paperback and hardcover editions. The goal of the Princeton Legacy Library is to vastly increase access to the rich scholarly heritage found in the thousands of books published by Princeton University Press since its founding in 1905.