  Charm meson decay dynamics have been studied extensively over the last
decade. We describe the Dalitz-plot analysis technique which has been applied
by many experiments to three-body D0, D+ and Ds decays. We discuss experimental
results from Mark II, Mark III, E687, E691, ARGUS, E791, FOCUS, CLEO and BABAR.
These studies probe a variety of physics including doubly-Cabibbo suppressed
decays, searches for CP violation, the properties of established light mesons
and the properties of pipi and Kpi S-wave states.
