This was an excellent book. I think it is a classic of occult literature. Kessinger has exactly captured the original even with orginal graphics. L.W. DeLaurence was a true mystic in his day, and this book is an excellent example of the prevailing practices and mystic thoughts of the early 20th Century. It is not a flashy book with color photos but it teaches solid practices for any aspiring occultist. If you wish to truly develop your clairvoyant abilities, this book may prove very helpful.
I bought this to study the connection between Hindu & Egyptian mysticism and mirror mythology, but was very disappointed. It's mostly wishy-washy vagaries about getting a person in touch with the astral plane. There's very little reliable referencing to actual ancient beliefs, and instead sounds more like Delaurence was attempting to fuse different systems he'd studied into some new, simplified route to "enlightenment". It would be more appropriate to call it "The Wanna-Be-Genuine Psychics Text Book". Who knows, maybe those looking for such a book would benefit.