I glued a printout of some books on to a wooden block,
then tried to cut the top edge/profile on a scroll saw - a bit rough - need to file. (gotta git my bandsaw fixed!) (maybe I should get a very tiny belt sander?)
I used an empty ballpoint pen to define the vertical edges of each book.
I would need to paint the top edge tan or something & the sides a similar color to the bindings (doesn't have to be exact.)
See thread HERE