2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/39942We review lattice QCD results for glueballs (including a discussion of mixing with scalar mesons), hybrid mesons and exotic mesons (such as $B_s B_s$ molecules). We also discuss string breaking as a mixing between colour flux states and $B \bar{B}$ states.12 pages, LATEX using sprocl.sty, 3 figures, talk presented at Confinement IV, July 2000, ViennaHigh Energy Physics - Phenomenologytext