This book introduces us to a very simple way the astronumérologie; it is not difficult to dive in while being very interesting. I think that to fully appreciate this book, it is better anyway have notions of numerology. I had already bought a book by JD Farmer "numerology to everyone" and with these two books, we get to have a good knowledge of the subject. I am wary of authors who seem to "Guru"; and I am fully satisfied with JD Farmer who shares his passion without looking bludgeon truths.