HI! Your app is fantastic, I hope you are continuing to work on it, I have a couple of suggestions for the app in question: - A virtual library where you can place the books (perhaps with the passthrough you could select whether visible or invisible, so as to be able to make it part of the real furniture haha) Obviously the save should remain so as not to always be placing books and bookcase xD - Bookmarks to mark which page we have reached once the app is closed and reopened so that we can start from where we arrived. Having said that, really congratulations, I've been dreaming of this app for years and I was wondering why the hell no one had invented it yet!!! 

Well done and keep it up!