Interesting there’s cover art for books, but it would be handy to have spine art too. I used to buy lots of books and now have them stacked up, I’ve bought lot

Interesting there’s cover art for books, but it would be handy to have spine art too. I used to buy lots of books and now have them stacked up, I’ve bought lots of eBooks and whilst I don’t trip up on them I don’t get into the habit of progressing them. From Physics I’ve set up collections for books I’ve got to 1%, 2%, 5%, 10%, 20%, 50% which roughly works out as equal, and I have the little triumph of moving a book forward.