Qualitative research uses its own distinct sets of research methods and sources of data in order to answer questions that would not otherwise be possible to answer.
Denzin and Lincoln provide a definition of qualitative research in the Sage Handbook of Qualitative Research (2011)
Qualitative research involves the studied use and collection of a variety of empirical materials—case study, personal experience, introspection, life story, interview, artifacts, and cultural texts and productions, along with observational, historical, interactional, and visual texts—that describe routine and problematic moments and meanings in individuals’ lives.
To find the most recent qualitative methodology texts search the Library's Catalog using the following syntax:
subject:("qualitative research") AND subject:(method*)
You can further narrow the results by Format, Date of Publication, Availability, etc.