2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/108218I discuss our current understanding of the properties and nature of high redshift, far-infrared luminous galaxies selected through their observed-frame submillimeter emission.Review for 2005 SSC Conference "Infrared Diagnostics of Galaxy Evolution", 8 pages, 3 figuresAstrophysicstext