All papers have been peer-reviewed. This volume gives an updated overview of current interdisciplinary studies on complex systems and nonextensive statistical mechanics. It is an ideal starting point for scientists and graduate students who wish to enter the field. The book features a diverse collection of the latest research work not found in a single volume elsewhere. Among the highly regarded contributors to the volume are the 2004 Boltzmann medalist H. E. Stanley and numerous internationally renowned experts, such as S. Abe, P-H. Chavanis, C. Beck, G. Casati, D. Farmer, H. Herrmann, R. Mantegna, J. Naudts, A. Plastino, A Robledo, B. Spagnolo C. Tsallis and many others.