This is a stack of books to put on your bookshelf.

There are 20 books in the same FBX file, with separate objects on a layer. The base texture includes all books covers. But if you want to individualize them, just export the objects individually opening the "books.mb" file in Maya (or importing the .obj or .fbx using your preferred 3d program). The same can be done with the texture by opening the Substance Painter file (books.spp). The texture channels are very organized and named. You can export a separate texture for each book, or make changes if you want.