2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/49537I summarize the prospects for discovering and studying the properties of Higgs particles at future high-energy and high-luminosity $e^+e^-$ linear colliders. I will focus on the Higgs particle of the Standard Model and the Higgs bosons predicted by Supersymmetric theories.latex, 10 pages, no figures, sprocl.sty included. Talk given at LCWS99, Sitges, Spain, May 1999High Energy Physics - Phenomenologytext