In a more complex and dynamic world, it is important to have knowledge of research methods in order to understand our internal and external environments. This paper aims to outline different ways of approaching research into language studies and mainly provides an introduction to one of them, the interview. As interviewing is one of the main data collection methods in qualitative research as well as one of the most powerful ways to understand other people, we explore its salient features and some issues surrounding its application. This paper begins by sketching out different research approaches and then describing the nature of the interview, its typology and types in terms of the degree of structure. Subsequent parts consider ethical and practical considerations in interpersonal interviews. The final section includes our reflections on actual interviews and touches on two additional interests.