I made a couple variations of a book from a cube until I had one that I was happy with and then I added rigging to pose a bunch of twists/turns/bites and then stacked them. Borrowing some of the Geometry node work from my supportless dice tower I was able to make a stack with some random rotation added (although I did that rotation by hand instead of geometry nodes). Then I sculpt/twisted the tower and added an open book to the top. Lastly - I added a mimic variant with my round mimic from my easter basket mimic earlier this year. So overall there are ~6 variants of books and another 6 with 25mm baseplates added.