Two lead articles set the theme for this issue devoted to evaluation as Emile G. McAnany examines the usefulness of evaluation and Robert C. Hornik addresses four widely accepted myths about evaluation. Additional articles include a report of a field evaluation done by the Accion Cultural Popular (ACPO); a study of the impact of that evaluation by Hernando Bernal, Ernesto Santos, and Guillermo Torres; the use of formative evaluation (feedback) in program production for instructional radio by Jamesine Friend; and the potential use of postcards to stimulate the interest of villagers by Benedict Tisa. A selected annotated bibliography on evaluation, reviews of four books on communications, descriptions of four educational projects, and an annotated listing of reports on educational television in the Ivory Coast that are available through ERIC are also included. (JEG)