I just stumbled (thanks to RR) over Arena for Books. This is a design challenge with the task to …

“Develop future­oriented and viable ideas for the physical presentation of digital publishing products and services in bookstores and at trade fairs.” Source: http://arenaforbooks.jovoto.com/

… by the Börsenverein des Deutschen Buchhandels (German Publishers and Booksellers Association) and others. Between all the ideas are various interesting approaches of digital shelves such as the Bookshelf 2.0:

Bookshelf 2.0 - Arena for Books
Bookshelf 2.0 – Arena for Books

 

Update: Now I realized that the Bookshelf 2.0 is the winner of the challenge. Buchreport published an article about it.