James Spradley was a professor of anthropology. His texts provide a wonderfully accessible discussion of “steps” in ethnographic data collection and analysis.

Spradley, J. (1979). The ethnographic interview. Fort Worth: Harcourt Brace Jovanovich College Publishers.

Spradley, J. (1980). Participant observation. Fort Worth: Harcourt Brace Jovanovich College Publishers.