INTRODUCTION
The goal of this book is two-fold. First it was designed to present the full picture of the progress achieved in analytic quantum chromodynamics in the 1990's. QCD is the theory of hadrons which will stay with us forever, no matter what, unlike many recent theories whose relevance to Nature is still a big question mark. Every novel result in QCD, every new insight, has a special weight—it reflects our deepening understanding of the structure of matter…