Here are some ideas for encouraging students to create their own books to showcase in the library.

I've noticed that students love the idea of having their own books in the library (or on the classroom bookshelf). When students create their own books it helps them tell and share their story. If you put those books on display in the library, it helps them gain recognition for their work and they feel like a true author/illustrator. If you are lucky enough to have a laminator and book binder at your school, then you can create books the old fashioned way with paper and pencil (and coloured markers for the illustrations). There are plenty of storyboards and templates available if you dig around on Pinterest, although I thought that www.studenttreasures.com offered a lot of great ideas. Through them you can order kits which include the fee for them to publish the book online, send you a hard copy for your class, and order more copies if need be. Even if you don't want to order the kit, you can still look at all the great examples they have on their website. 
Alternately, you can use iPads to create books. Apps like Book Creator, Book Writer, Storykit, Story Creator, My Storybook, and Blurb all offer online book making. Some of the will even allow you to add voice-over, photos, PDF's, or videos. You can print the book in PDF form and bind it yourself, or export it to the app company to have it printed in hard copy. 
To promote and showcase the books, I would recommend creating a display in the library, and if you have a library twitter page you can use the hashtag #proudauthors, which is specifically used to promote student-made books. You can also celebrate the book launch with a "book signing party," which will make the kids feel special. 
Let's celebrate our young authors!