This document discusses different types of interviews that can be used as a data collection method in research: unstructured interviews, structured interviews, and semi-structured interviews. It provides details on each type, including their characteristics and when each might be useful. The document also outlines various aspects of conducting interviews such as types of interview questions, Kvale's seven stages of interviews, tips for effective interviewing, advantages and disadvantages of the interview method, and analysis approaches like thematic analysis.