The text proposes rethink some aspects of labor history, to find deviations in research and teaching and angles that were not problematized. Begins with the study of the links between Labour History and Social History, that establish sometimes a "Labor Social History" to broach in sequence the following topics: political, social, ethical and ontological importance of work in human societies; links of working memories with history; the seasonality of use of sources for this purpose; the need for evaluation of the "state of the art" and annotated bibliographies on Labor Social History concluding with a reflection on the relationship between this and high school.17341336