Advances in material technology and low temperature techniques have led to the discovery of new physical phenomena. Situations are now routinely achieved in which the electronic system is so dominated by interactions that the old concepts of a Fermi liquid are no longer necessarily a good starting point, particularly so in the theory of low-dimensional systems. Disorder is often an unavoidable complication in such systems, leading to a host of rich physical phenomena, which has pushed the forefront of fundamental research to the point where the interplay between many-body correlations and quantum interference enhanced by disorder has become the key to understanding novel phenomena. The topics included in this volume cover surprises found in novel nanostructures and low-dimensional devices of submicron size, including quantum interference and electron-electron interactions in transport in metals, semiconductors and superconductors, theories of the Luttinger liquid of electrons in carbon nanotubes, Wigner crystals in 2-D electronic systems, the Kondo effect in quantum dots in the Coulomb blockade regime, quantum chaos in ballistic and disordered microstructures, and mesoscopic effects in superconductors. Experimental papers cover the physics of the Kondo effect in 0-D devices, transport in 1-D nanotubes, magneto-optics of skyrmions and composite fermions in the quantum Hall regime, and a possible metal-insulator transition in 2-D electron and hole gases.