2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/66633We present a few general results on foliations of 4-manifolds by surfaces: existence, tautness, relations to minimal genus of embedded surfaces; as well as some open problems. We hope to stimulate interest in this area.23 pages, 10 LaTeX figures. Infinitesimal revisionGeometric TopologyDifferential Geometry57R30 (Primary); 57N13 (Secondary)text