The present invention provides a system for publishing and displaying digital materials, comprising an ePub publishing module comprising a mechanism for publishers to upload ePub files, a user management module providing a means to add, edit and remove end users from the system, a bookshelf module for organizing the user's content in order to create a logical grouping of content, a reading content module for reading content after the user has been mapped to the content, and an annotating content module for annotating user selected text.