The following images are of a previous promotional campaign by Leeds Library that I found on their flickr site, which was undertaken by a local design company called pure design. I dont think they are that creative or striking and don't really excite the viewer so much so they want to go to the library for books. This is something I want to avoid as my main goal is to draw 'customers' to the library.
I think using imagery that is creative, inspiring and interesting, that brings the books to life will draw customers in as it will make them want to find out more about the certain stories or books I will create promotional imagery for.