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.