After a commentor (5ig0p) asked why no pixel artists normally don't include spines to their books it really got me thinking that it could be a fun addition to add. I wanted to take a break from just adding more books, so I was thinking it could be fun to add spines to allow for more options in different projects. With this update I have been designing them over the weekend and got the first 30 done. I plan on adding more and going down the same order of added books. Hopefully someone can use it uniquely in their projects.