A. Colin, coll. "128", 5th edition, August 2021.

"Directly observing social practices by being present in the situation in which they are developed is a way of reconstructing them more accurately than by simply listening to the people involved, through interviews or questionnaires.
The conditions for the scientific validity of this investigative approach are set out here, to address the risk of knowledge becoming too involved in the situation. The book offers advice on the various stages of the survey, from choosing the field to the final report, including how to take part in the situation, note-taking, analysis, etc. ".