This article addresses the challenges faced by HRD researchers in selecting a qualitative approach, particularly Grounded Theory Method (GTM), which is underrepresented in the field. The author discusses the epistemological foundations of the four major GTM versions and outlines the six essential elements. The article emphasizes GTM’s flexible yet structured nature and explains differences among Glaserian, Straussian, Charmazian, and Clarkean methods. It also summarizes common GTM features like concurrent data collection, constant comparison, theoretical sampling, phased coding, memoing, and theoretical saturation. The article concludes by providing suggestions to promote GTM’s adoption and popularization. In essence, this article offers guidelines to assist HRD researchers, especially newcomers or those with limited qualitative research experience, in understanding and effectively using GTM.