This book is the companion to Konstantinos' "Nocturnal Witchcraft" and the 2 go wonderfully together! Although some of the things in "Grimoire" are mentioned in "Witchcraft", Konstantinos does not repeat himself buts delves deeper into the subject matter. This book is an excellent read and easy to follow for anyone who doesn't have their own ceremonial rituals already. It's a wonderful feeling to be able to hold a book that speaks about "dark workings" NOT being evil! An absolute must for any nocturnal practitioner!