Representatives of 13 states and of the United States Office of Education developed this handbook to assist educators in the administration of Education Fairs. Such fairs are a valuable means for providing for the diffusion of educational innovations and should be designed to demonstrate the effectiveness of new and exemplary practices. Chapter I discusses planning and the establishment of committees and their functions, while chapter II deals with the development of the Fair, including its sponsorship, necessary facilities and equipment, security and maintenance, manpower and scheduling. Chapter III focuses upon the management of the fair, and the following chapter covers evaluation, with special emphasis upon evaluative design and procedures and on data collection instruments. Chapter V treats communication, diffusion, and the adoption of innovative practices by the audience. Several appendixes provide suggestions for managing the fair and offer checklists to assist with planning. (PB)