"Copywriters Bible" book design in progress...

Im currently working on a swedish book called "Sälj det med ord" (Sell it with words) - The copywriter's bible. Here's a quick 3D render of the cover. Im also doing all the illustrations and typography in the book. It's written by Mattias Åkerberg and is due sometime this fall. I will upload illustrations and pages from the book later that I need your feedback on.