The document summarizes the ABC-eBook system used at Graz University of Technology for managing e-learning content and creating e-books. The system allows for centralized management of e-learning resources across the university. It features an online authoring tool called ABC-Manager that allows instructors to assemble e-books by collecting reusable microcontent from a content pool and organizing it with the ABC conceptual framework of basic, descriptive, and hypertext content. The generated e-books can then be integrated into the university's learning management system for students to access.