This textbook is more than a standard introduction to databases: It is a comprehensive set of tools that makes the teaching and learning of basic facts about databases and hypermedia much easier. On an undergraduate level the basic ideas of relational, object-oriented, and hypermedia data models and databases are explained, both in printed form with many illustrations and in the form of 26 "lessons" of courseware. This relieves the instructor of much of the burden of preparing transparencies, and allows the students to repeat or study lecture material in electronic form that follows exactly the printed presentation. Please note that the software runs on Windows platforms only!