On the 9th and 10th of June 2015 the Labour Movements Archives and Library (ARBARK) organized an extremely interesting workshop on the history of informal sector and the methodological challenges and opportunities. The purpose of the meeting was to create a forum for in depth discussions on methods useful for researching working conditions on the informal sector of the labour market. The discussions did not only touch on the needs of research on these matters within humanities and social sciences, but also addressed the need of a change in approach among memory institutions.