"This volume, part of the Protein Reviews book series, will successfully and clearly examine how biophysical approaches can be used to study complex systems of reversibly interacting proteins. It will deal with the methodology behind the research and how to synergistically incorporate several methodologies for use. The study of complex systems cannot be described or summarized in the abstract; therefore, each chapter would treat and introduce the reader to different biological systems, include a brief summary of the physical principles, and mention practical requirements (such as amount of material required), but not be of recipe type, and instead rapidly lead to principles and examples of applications to complex systems."--Publisher.