Bengal Sketchbook
I saw this sketchbook being mentioned at Conceptart.org months ago. I had forgotten about it until a friend emailed me about it.
This is a 48-page sketchbook from Bengal, a comics artists & illustrator based in France.
It's available for sale at comixburo.com.
Comix Buro also has other sketchbooks on sale. You can check out more art work at their blog comixburo.blogspot.com