I'd been wanting to make this scene for a year or two (I picked up the dwarves about three years ago) and finally managed to get the books cast after working on them on and off for several weeks. The books are cast in Merlin's Magic from a Hirst Arts mold, and I made a second mold to speed up the process. The bookshelves are foamcore. After that I painted the dwarves and finished up the rats just in time to submit a photo.
The dwarves are from Lead Adventure Miniatures, along with five of the larger rats. Another rat is from GW's Necrmunda range, and a few others that are clearly GW and are likely from the Skaven lineup. The little rats I bought second hand and I have no idea where they're from.