During the first world war, Carl Jung embarked on an extended self-exploration he called his ‘confrontation with the unconscious’. At the heart of this exploration was The Red Book, a grand, illuminated volume which he created between 1914 and 1930, in which he developed the nucleus of his later theories.

The book is a remarkable blend of calligraphy and art; an illuminated manuscript that bears comparison with The Book of Kells and William Blake. But while Jung considered The Red Book his most important work, only a handful of people have ever seen it. Finally, nearly 80 years after it was completed, it is available in a facsimile edited by Jung historian Sonu Shamdasani and published by WW Norton. View a handful of the pages here.