2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/49469Lattice calculations of matrix elements relevant for kaon decays, and in particular for epsilon'/epsilon, are reviewed. The role of the strange quark mass is also discussed. A comparison with other non-perturbative approaches used to compute kaon decay amplitudes is made.LaTeX, 17 pages. Invited talk at KAON `99, June 21-26, 1999, Chicago IL, USAHigh Energy Physics - Phenomenologytext