This book is one of the most important reference books in Field Theory with permanent value. To enable wider access by students, researchers and libraries of developing countries, this valuable volume has been reprinted and is sold at a much lower price than before.Contents:Introduction to Functional Methods (L Faddeev)Introduction to Renormalization Theory (C Callan, Jr.)Gauge Theories (B Lee)Applications of the Renormalization Group to High-energy Physics (D Gross)Quantum Theory of Gravitation (M Veltman)Applications of the Renormalization Group to Critical Phenomena (E Brzin)Readership: High energy physicists.Key Features: