2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/231025I discuss topics in the strong QCD dynamics that are of relevance to studies of the $B$ mesons and to the spectroscopy of heavy hadrons. In particular the limitations from the hadronic dynamics for the determination of the weak-interaction parameters are discussed as well as some models for the newly observed apparently exotic resonances with hidden charm.Lecture at the Lake Louise Winter Institute, Feb. 19, 2009. 12 pages, 2 figuresHigh Energy Physics - Phenomenologytext