Picked up my copy on Saturday and have to say it's an impressive looking piece of work. As a few others have noted the illustrations are fantastic, the shading on the drawings adds to a sense of scale and texture giving a 3D look to the rocks. I've only had chance to have a quick flick through it but I've already noticed that while a lot of the carvings seem to be 'generic' rock art there also seems to be many stones that have a very different vocabulary to those further to the south-west of Yorkshire.
Anyway, top marks to all involved :-)
-Chris