This paper summarizes a variety of recent results on heavy quark production and decay. Considerable progress has been made by CDF and D0 in measuring top quark production and decay properties. The top quark mass been measured with an uncertainty that is less than 3%, a relative precision that is better than has been achieved for other quarks. Measurements of the top production and decay properties are consistent with the Standard Model predictions, but are generally limited in precision by the small number of top quark events in the present data samples. ALEPH and CLEO have measured the branching ratio for the flavor changing neutral current decay b→s[gamma] and find good agreement with the standard model. Measurements of B-quark production cross sections in p{anti p} collisions by CDF and D0 and in ep collisions by H1 continue to show discrepancies between theory and experiment. CDF and DELPHI have measured the b-quark fragmentation fractions with better accuracy than previous measurements. Finally, measurements of charmonium production by D0, E771, and L3 are consistent with predictions of the color octet model.

We present studies of 3-jet final states from hadronic Z0 decays recorded by the SLD experiment. A comparison of the strong couplings of light, c, and b quarks is made using 3-jet rates. We have performed a detailed study of e+e---> b anti-bg final states, in which the quark, antiquark, and gluon jets are identified. The gluon energy spectrum, measured over the full kinematic range, is consistent with the predictions of QCD, and we derive a limit on an anomalous chromomagnetic bbg coupling. We measure the parity violation in Z0 decays into b anti-bg to be consistent with the predictions of electroweak theory and QCD, and perform new tests of T- and CP-conservation at the bbg vertex.

Experimental evidence indicates that the top quark exists and has a mass between 50 and 200 GeV/c2. The decays of a top quark with a mass in this range are studied with emphasis placed on the mass region near the threshold for production of real W bosons. Topics discussed are: (1) possible enhancement of strange quark production when M{sub W} + m{sub s}