2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/49313The determination of |Vcb| and |Vub| from semileptonic B decay is reviewed with a critical discussion of the theoretical uncertainties. Future prospects and limitations are also discussed.Invited talk at Kaon'99, June 21-26, 1999, ChicagoHigh Energy Physics - Phenomenologytext