2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/39714We review recent advances in the theory of strong-interaction effects and final-state interactions in hadronic weak decays of heavy mesons. In the heavy-quark limit, the amplitudes for most nonleptonic, two-body B decays can be calculated from first principles and expressed in terms of semileptonic form factors and light-cone distribution amplitudes. We discuss the features of this novel QCD factorization and illustrate its phenomenological implications.8 pages, 1 figure. Invited review talk presented at the XXXVth Rencontres de Moriond, QCD and High-Energy Hadronic Interactions, Les Arcs, France, 18--25 March 2000High Energy Physics - Phenomenologytext