The aim of this paper is to provide a linguistic description of some Spanish discourse markers with the functions of "summary", "conclusion" and "closing". These markers are: en resumen, resumen, en resumidas cuentas, en suma, total, en conclusión, conclusión, en fin, finalmente and por último. This description will include a study of the discursive uses of each marker through an analysis of, among others, their possible lexicalization, the pertinence of their presence, the type of syntactic relation and their degree of autonomy.