This review of the research on listening offers general guidelines to help teachers be more effective listeners and to help them teach their students more effective listening skills. The process of listening is discussed according to three components, attentiveness, understanding, and evaluation, which are viewed as occurring sequentially, cumulatively, and often almost concurrently in the ongoing process of communication. Research on these three processes is organized into discussions on three different kinds of messages: informational or content oriented messages; feelings or emotion oriented messages; and aesthetic messages, including music, poetry, and drama. (MKM)