You've heard about it in my previous posts here. You've read my pre-release reviews of it. You've seen RO's recent post suggesting it. Now go get it. Seriously. If you are a magus of the Grimoire tradition, or of any tradition wherein evocation is key, get this book. I had the pleasure of reading its first draft as well as the final product, and I can unhesitatingly say this is the biggest Grimoiric release of the year.