Recent Progress in the Heavy Quark Theory

Abstract

Some recent developments in the heavy quark theory are briefly reviewed. The main emphasis is put on interrelation between HQET and OPE. The notion of duality and deviations from duality are discussed in detail.

Comments: Plain LATEX, 23 pages, 4 figures available from the Author upon request; Talk at the V International Symposium on Particles, Strings and Cosmology -- PASCOS -- Johns Hopkins University, Baltimore, Mar 22-25, 1995.