I prefer to think that the bookcases are crammed clear up to the ceiling. They needed to call in a team of carpenters to get them to fit.
The edging issues should be mostly fixed now, although there's one fiddly bit under one of the bookshelves which won't seem to go away.
I'd love to have a team member who could focus on the mapping for this game, since it's by far the most painstaking part of the game making process for me, but as long as I'm doing this solo, I'm trying to achieve the level of "not too crappy" with my mapping skills. The environments probably won't be consistently polished, but I'm trying to at least keep them interesting.