For Publisher's use RECENT PROGRESS IN HEAVY QUARK PHYSICS

Some of the recent progress in heavy quark physics is reviewed. Special attention is paid to inclusive methods for determining Vub and factorization in nonleptonic B decays. Theoretical predictions for tt production near threshold are also discussed. 1 Model Independent Predictions Since QCD cannot be solved exactly ev-ery theoretical prediction of the properties of hadrons containing one or more heavy quarks involves approximations of some kind. Much of the theoretical progress in the last ten years has arisen from treating the heavy quark mass mQ as large and expanding in ¤QCD=mQ and ®s(mQ). In this talk ¤QCD denotes a nonperturbative quantity of order the scale at which QCD becomes strongly coupled. Some such quantities are: f