2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/7331We report on recent progress in our theoretical understanding of X-ray binaries, which has largely been driven by new observations, and illustrate the interplay between theory and observations considering as examples intermediate-mass X-ray binaries, irradiation-driven evolution, ultraluminous X-ray sources and neutron stars with low-velocity kicks.4 pages, 2 figures, Proc. of La Paz Meeting, IAUC 194: "Compact Binaries in the Galaxy and Beyond"Astrophysicstext