Complete tutorial is availabe at Kwik Tutorial > Put them together - bookshelf > embedded
A bookshelf app contains mutlile books published with Kwik. The lua files of each book project are embedded in the app but the assets such as images, audio files of each book are not embedded. They are downloadable. In App Purchase is powered by IAPBadger of Happy Mongoose Games.
The bookshelf app controls which book to be loaded. Each book project can be built as a single standalone project.
Each book projects and TOC( table of contents for bookshelf ) project need to be developed with Kwik Pro License for KwikShelf plugin to work with them.
You need a http server for the app to download the assets of books.
The plugin supports Corona simulator, iOS and Android.
Note: Kwik is an extension(plugin) of Adobe Photoshop. Kwik generates images and lua files of a Corona project. You can start to use Kwik and make a stroybook app with Basic license (Free). Pro License unlocks all the features such as bookshelf, particle editing.