The information published here, also in the form of infographics, may be of interest to current and future professionals. Their professional exercise can take several forms: internship (subject of a tripartite agreement between the intern, the host organization and the educational establishment, it must be integrated into a course or at least be validated by Pôle emploi) , employment contract (fixed-term "CDD", indefinite-term "CDI", part-time "CTP", temporary "CTT"), period of placement in a professional environment "PMSMP" (open to any person working subject of personalized social and/or professional support), or any other similar system.