Speak Quietly blog has a post about a Librarian game described as follows:-
Shelving books may not sound very sporty, but if you have ever wondered how fast can you shelve a cart of books, then there’s now an app for that.
Last October, my wife and I began working with a developer to create a game just for librarians. The game is called “Sheleved” and it went live last week.
The game features three different modes of play: LOC, Dewey, and Alphabetical.
Its available on the Ipod and Ipad.