Doing design ethnography elaborates the ethnomethodological perspective on ethnography, a distinctive approach that provides canonical 'studies of work' in and for design. It provides an extensive treatment of the approach, with a particular slant on providing a pedagogical text that will support the development of competence for students, career researchers and design practitioners. It is organised around a complementary series of self-contained chapters, each of which address key features of doing the job of ethnography for purposes of system design.