Oooo, are we have a 'design a book cover' competition?
Even if one isn't chosen it would be fun to try.
Speaking as a designer I would suggest considering what a row of books would look like and how it would stand-out against the competition. If you consider CD covers a lot of albums are very samey so when someone does something different it attracts your attention.
When the following New order album was released you couldn't help but notice it in the racks when several were displayed together.
Hmm, I have a cover idea...I'll be right back!