Results on observables related to hard scattering processes as presented at
this conference are reviewed. This includes in particular measurements related
to jet quenching, a phenomenon which has been predicted as a signature for the
hot and dense early phase of strongly interacting matter.Comment: Summary talk at Quark Matter 2002, Nantes, Proceedings to be
published in Nucl. Phys. A, 10 pages, 6 figures, (one figure added in this
version