Blood group systems Book

I wondered when/if I would ever finish this! Determined to do so last week when on holiday in the Lake District. I used to read a lot of psychology, including Jung, and decided to pick up on this book on the suggestion of my husband who has written an essay on Medium.com (under the name Graham Pemberton) called 10 books which changed my life. Well, I've given The Gnostic Jung five stars because I know it deserves it, but I don't really feel equal to giving it an appropriate review. It stresses the importance of an individual spirituality as opposed to adhering to an organised religion and uses a series of 'revelations' called the Seven Sermons to the Dead to make the point. I did find it a very dense read, but overall inspiring. I've decided to try to upgrade my reading and certainly hope to return to this topic.