|The Workshop on Self-Timed System was held at the MIT Endicott House on July 8-12, 1979. This workshop served to bring together experts in the field of self-timed systems to review and assess the state of the art and to chart directions for future research. For the purpose of the workshop., self-timed systems were defined to include any system composed of a set of modules which communicate asynchronously. The modules, however, may themselves be implemented either synchronously or asynchronously. It is hoped that the advent of custom ISI parts offers a new opportunity for the application of self-timed principles. The strong bias of conventional, standard IC parts toward clocked systems may no longer limit the practically of self-timed designs.