2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/104545The main aspects of the phenomenology of absolute neutrino masses are reviewed, focusing on the limits on neutrino masses obtained in tritium beta decay experiments, cosmological observations and neutrinoless double-beta decay experiments.11 pages. Talk presented at the XXIX International Conference of Theoretical Physics 'Matter To The Deepest: Recent Developments In Physics Of Fundamental Interactions', 8-14 September 2005, Ustron, Poland. To be published in Acta Physica Polonica B 36 (2005)High Energy Physics - Phenomenologytext