Submicron and nanoscale systems have risen on the research agenda. Exploiting the technological potential offered by these exotic materials requires a fundamental understanding of basic physical phenomena on the mesoscopic and nanoscopic scales. This book, written by leading experts in the field, covers such topics as the Kondo effect, electron transport, disorder and quantum coherence with electron-electron interaction, persistent current and thermoelectric phenomena, in quantum dots, quantum wires, carbon nanotubes and more.