This volume focuses on four main areas: theoretical and empirical work on peer interaction and learning; cognitive models of collaborative interaction; computer networks and computer-mediated communication; and design issues in supporting collaborative learning. It supports three main themes. The first is that research on collaborative learning should focus on the processes involved in successful peer interaction. Another is the importance of organizational aspects of setting up and maintaining the collaborative use of computers for learning. The third is that different design issues are implied by synchronous or real-time as opposed to the asynchronous use of distributed computing.