Yeah I thought of maybe suggesting one of you seasoned DT vets possibly being able to distinguish based on the color of the spine lettering lol.. but that went down the drain when the thought occurred to me that maybe those aren't actual pics of his books. They are very different, after all, from the image of his copy of UTD..
That and the last email I just got from him saying that books 4 is NOT signed by the artist, books 5 and 7 ARE signed by the artist, but also book 6 is NOT signed by the artist. Which really has me scratching my head because the image shows 5-7 artist editions.