Bluesman,
Thanks for the feedback. Sorry it took so long to reply. I don't get on here too often and look at my own work. (I tend to check out other's stuff and forget that I posted.) The stitching doesn't actually go all the way around. I made the inner cover pretty long and it works with a composition book. But with any firm book I think it would be difficult to get in and out. It looks like the stitching goes all the way around because I did a groove that continues all the way around and just stitched where I needed it.
Interesting that you bring up your customer base. I got into leatherworking when I was deployed with the military and there was a guy who had been doing it for years and gave me some tips and lessons. I was at a conference not too long ago and saw another guy with a beautiful leather notebook cover. I struck up a conversation, asking if he did leatherwork. He said that he actually bought it at an show and come to find out, it was made by the guy who taught me. I thought I recognized the work. But he raved about the cover and said that he always got complements. So you never know where your work is going to show up!