XYZ States: Theory Overview

Various ideas associated with exotic hadrons, and hadronic structure in general, are briefly reviewed.Comment: 6 pages, Proceedings of Hadron201

Aspects of Confinement: a Brief Review

A brief and biased overview of the phenomenon of confinement in QCD is presented in three parts: (1) the definition of confinement, (2) properties of confinement, (3) ideas of confinement. The second part chiefly consists of a brief review of recent lattice computations related to confinement while the third summarizes some of the current analytical approaches to understanding confinement. These include the Dyson-Schwinger formalism in Landau gauge, Hamiltonian QCD in Coulomb gauge, and the vortex picture of confinement.Comment: 10 pages, 6 eps figures. Plenary talk at Hadron 2003, Aschaffenburg, German

Molecular Interpretation of the X(3872)

The discovery of the X(3872) in the 3\pi J/\psi mode is compelling evidence for its molecular nature. A successful prediction of this decay mode and other predictions are reviewed here.Comment: 3 pages, ICHEP proceeding

Beyond the Constituent Quark Model

Modern experiment requires a reliable theoretical framework for low energy QCD. Some of the requirements for constructing a new model of QCD are presented here. Progress toward these requirements are highlighted.Comment: 10 pages, 5 ps figures, based on a plenary talk at Hadron 2001, Protvino, Russi