Introduction This chapter focuses on academic events that involve spoken interaction between students and their lecturers, teachers or tutors, and between students. In particular, it reviews research that has led to descriptions of discourse in dyadic and multi-party interaction, such as in seminars, tutorials, question-answer exchanges in classes and in one-on-one encounters, including office hours. Such descriptions play an important role in helping English for academic purposes (EAP) practitioners understand the nature of the linguistic demands that students face in dialogic speaking in academic contexts, and why such speaking may be an area of concern for learners using English as an additional or second language in their academic studies.