Forty-one essays, divided in to five sections, enable the reader to gain a deep understanding of past, current, and future research and applications in the field of education technologies. The first section describes state-of-art information and communication technologies and their use in an educational context. The second section, on design and development lifecycle, deals with methods, concepts, and tools for designers and developers of educational technologies. The third part discusses the new and changing requirements for actors in educational processes and covers comprehensive aspects of workspaces in educational organizations. The fourth section covers concepts and best-practice cases for the use of educational technologies in specific subject areas or domains. The concluding part, on learning settings, describes scenarios involving information and communication technologies in different learning situations. Adelsberger and Pawlowski are at the University of Essen. Collis is at the University of Twente. Index.