Experimental overview of jet physics and tests of QCD

The latest e+e--annihilation and pp-bar collider results on jet physics and tests of QCD are reviewed. Within the framework of QCD shower models, hadronic event shapes and their energy evolution which are observed in e+e- annihilation are well described by QCD scaling violations plus an energy independent parametrization of hadronization. The energy dependence of jet production rates, observed in e+e- annihilation at √s=29 to 91 GeV, provides evidence for asymptotic freedom. Angular correlations within four-jet final states of Z0 decays further confirm the non-Abelian nature of the strong interaction. Jet production at the pp-bar colliders provides significant tests of leading and next-to-leading order QCD calculations. (author)