Exceptional quality. Texture, cover, guilding. Fantastic. But the added material is worth the purchase. MAS's works can seem daunting, even unapproachable. The added material allows one to "back-up" and kind of get one's feet on "ground-level." It all kinda "clicks" and becomes "real." Esp. if one hasn't invested the time and energy necessary to understand it. This is a "hand's on," "take action" path. But the books are so full of images, sigils, new jargon, etc.a cursory glance doesn't suffice. MAS VALIDATES himself with the added material. Of course, MAS has been there from the beginning with his accessibility in answering questions. But this new approach works. The Red King edition needs to be jumped on. Ultimately, IMO, the author needs to publish supplementary, instructional material entirely separate from the series.