Textbook authors have the responsibility to present a complete and accurate account of a specific discipline. In the field of interpersonal communication, intrapersonal communication is of great importance. Textbooks tend to take two approaches to intrapersonal communication. One approach treats intrapersonal communication as essentially the same as interpersonal communication except that the sender and receiver are the same. The other treats intrapersonal communication as an element of personality improvement. The most effective treatment of intrapersonal communication in interpersonal communication texts will derive from a judicious blending of the two approaches. A model of intrapersonal communication might begin with the notion that from infancy, one's earliest communications are more intrapersonal than interpersonal. As one becomes socially mature, the focus becomes more interpersonal or sociological, and as intimate relationships develop, interpersonal relationships begin to resemble intrapersonal relationships. Intrapersonal communication is an area to which much greater attention must be given by researchers and theorists so that textbook writers will have a firm base on which to draw. Further, interpersonal communication textbook authors need to devote more attention to intrapersonal communication. (SRT)