The essentials and techniques of effective communication are presented in the guide designed as a source book for leaders conducting a communications seminar. General suggestions for leading a group discussion and some specific suggestions for activities which involve the seminar participants are presented. Factual information relating to effective communication and providing a basis for discussion is arranged by topical heading. The guide is divided into six units entitled: (1) purposes and people, (2) responsibilities and roadblocks, (3) persuasion and principles, (4) listening and leadership, (5) media and messages, and (6) motivation and management. Appended are supplemental aids including activities, handouts, and transparency originals. (VA)