榮格，是著名心理學傢，分析心理學的創始人。1909年，弗洛伊德把他定為精神分析運動的法定繼承人，稱他為“王儲”。1911年，在弗洛伊德的舉薦下，榮格擔任國際精神分析學地第一任主席。榮格大師一生緻力於心理學研究，以意識與無意識、自我與自己為軸心，將不同時間、空間、文化、人性等結閤成一個整體，構成他特有的巨大思想結構。他的分析心理學理論自成一傢，成為舉世公認的權威。榮格在性格哲學方麵的研究，可以說填補瞭一大空白，從此，“性格決定命運”有瞭科學的哲學依據。

Psychological Types is one of Jung's most important and most famous works. First published by Routledge (Kegan Paul) in the early 1920s it appeared after Jung's so-called fallow period, during which he published little, and it is perhaps the first significant book to appear after his own confrontation with the unconscious. It is the book that introduced the world to the terms 'extravert' and 'introvert'. Though very much associated with the unconscious, in Psychological Types Jung shows himself to be a supreme theorist of the conscious. In putting forward his system of psychological types Jung provides a means for understanding ourselves and the world around us: our different patterns of behaviour, our relationships, marriage, national and international conflict, organizational functioning. Appearing in paperback for the first time this central volume from Jung's Collected Works will be essential to anyone requiring a proper understanding of Jung's psychology.