2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/6096Studies of the resolved stellar populations in nearby systems are crucial to understand galaxy evolution. Here, we summarize how the interpretation of the colour-magnitude diagrams of field stars in late-type dwarfs inside and outside the Local Group has allowed us to infer their star formation histories and put useful constraints on the evolution of this type of galaxies.7 pages, 4 encapsulated .ps figures. Review presented at the "Stars in galaxies" meeting held in La Palma (Spain) in March 2003. Mem.S.A.It. in pressAstrophysicstext