Narrative Inquiry is the sixth book of the series titled, Lecture Notes on Research Methodology, published by this author. It involves the use of stories to pass a message, diagnose a problem, and or provide recommendations for resolving a problem. This qualitative research method is useful when the variables related to a phenomenon can't be parameterized and cardinal or ordinal measures may not adequately help to identify investigable relationships between the variables. Accordingly, storytelling becomes the most realistic presentation, research, and problem-solving tool. Narrative inquiry is a useful tool for jurists, teachers, policymakers, researchers, psychoanalysts, clinicians, politicians, psychotherapists, life coaches, motivational speakers, artists, novelists, and a host of other professionals and individuals who are interested in having an in-depth understanding of, and the ability to explain the issues pertaining to, any subject or condition.