I have been suggested the book The Practice of Magical Evocation in order to help me get started on summoning spirits. Under this recommendation, I purchased a used copy of it on amazon and then realized that this book was a continuation of Franz Bardon's prior book titled Initiation into Hermetics. Could somebody tell me whether it is important to have read that first book before working with the techniques in TPOME? I could always order IIH as well but that book has a reputation of being especially hard to master. So basically, my question is, how vital is it to have mastered the techniques out of IIH before working with Franz's other book TPOME?
thanks ahead for any replies