The authors analyze and discuss the field of communication from a multidimensional point of view. Divided into three parts, the first traces its history from scientific, humanistic, and technological roots. The second explores communication theory in the areas of interpersonal, organizational, mass media, intercultural, telecommunication, nonverbal, and with reference to issues of gender as the authors summarize the most significant theories, research, and practices in each area. A discussion of the future direction of communication research is provided in the final section.