It is obvious that the author makes a crossover between teachings from different magic systems. For instance, the material on the Qabalah follows orthodox Golden Dawn teaching very closely.
I say that this is a very useful book for those who are searching for a very easy to read accessible information.
However, I must say that this book does not offer very useful informations to experienced ceremonial magicians.
As a final comment, I really do not know why the title of the book is "(...) high witchcraft".
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