In this unique book, the world's foremost experts in both high energy nuclear and particle physics present comprehensive overviews of the recent achievements in these exciting areas of research. Among the topics covered are modern applications of effective field theory, precision tests of the standard model, new perspectives in quantum chromodynamics, and the latest results in relativistic heavy ion collisions. Each chapter is self-contained, beginning with introductory background material and culminating in an in-depth discussion of the current major developments. Written with both the student physicist and the active researcher in mind, this volume is sure to be an invaluable reference for graduate students and professionals alike.