Want to be a librarian? There's an app for that.

OK, not really; but there is an app to help you learn how to shelve books and to shelve them quickly!  It's a new game called "Shelved" and the goal is to put books in order.  Sound simple?  It's not. There are three different ways of organizing books: alphabetical, Dewey Decimal, and Library of Congress.  You'd better be on top of your game if you want to work in a library!