Imagine a full, half or quarter wall size of e-paper that dynamically display all of your ebooks collection as if they are physical copies in your study room, main hall, etc.<p>The main different compared to the physical bookshelf is that it is always updating (round-robin, moving, rotating, etc) thus it can display all your books in a limited e-paper physical gallery space (depending on the installed e-paper size and dimension) but should cover all your ebooks over time.