The "Collected Works of C.G. Jung, Volume 9 (Part 2)" offers a comprehensive analysis of the phenomenology of the self as presented by C.G. Jung in his work "Aion." This paperback, edited by R. F.C. Hull and Gerhard Adler, is a significant academic book in the field of social sciences and is aimed at readers interested in psychological theories and their applications. With a page count of 360 and a weight of 558 grams, it is both portable and informative. The publication, released in English in 1979, measures 15.2 cm in width and 23 cm in height, making it a practical companion for students and professionals. In this work, Jung explores central concepts of the self and their significance for both individual and collective psyche. The "Collected Works" are a valuable resource for anyone engaging with depth psychological theory and the development of human consciousness.