2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/148153We discuss the phenomenology of jet physics at hadron colliders, concentrating on the internal structure of jets, which is studied using the jet shape distribution or subjet distributions.Replaced version adds several references and corrects several minor inconsistencies. No results are affected. 17 pages, 13 figures. Contributed to Proceedings of Les Rencontres de la Valee d'Aoste: Results and Perspectives in Particle Physics, La Thuile, Italy, March 2-8, 1997. This paper can also be obtained from http://surya11.cern.ch/users/seymour/pubs/lathuile.ps.gzHigh Energy Physics - Phenomenologytext