A model to encourage and facilitate change in school media programs was developed and field tested. The model was intended to provide assessment measures of media centers, planning strategies, and methods for implementing change. The model considered personnel, physical plant, collections, and operations. In 1975, the model was field tested in eleven elementary schools and six high school. Follow-up questionnaires and site visits suggested that the model was instrumental in creating changes in the school media centers. The text is a detailed collection of documents which trace the planning, execution, and results of the project. (EMH)