Heavy Quark Decays
  The status of heavy-quark decays as of summer 1999 is reviewed. New measurements of semileptonic B decays from LEP and from CLEO are reported and the status of determining the CKM parameters |Vcb| and |Vub| is assessed. Rare charmless hadronic B decays are reviewed, including the first observation of B->pi pi from CLEO. First attempts to measure CP asymmetries in rare decays are described. The implications of all of the data for our understanding of the Standard Model are briefly assessed. 
Ronald A. Poling