This is a collection of Prof L D Faddeev's important lectures, papers and talks. Some of these have not been published before and some have, for the first time, been translated from Russian into English. The topics covered correspond to several distinctive and pioneering contributions of Prof Faddeev to modern mathematical physics: quantization of YangߝMills and Einstein gravitational fields, soliton theory, the many-dimensional inverse problem in potential scattering, the Hamiltonian approach to anomalies, and the theory of quantum integrable models. There are also two papers on more general aspects of the interrelations between physics and mathematics as well as an autobiographical essay.Contents:Perturbation Theory for Gauge-Invariant FieldsThe Feynman Integral for Singular LagrangiansCovariant Quantization of the Gravitational FieldQuantum Completely Integrable Models in Field TheoryFrom Integrable Models to Conformal Field Theory via Quantum GroupsHamiltonian Approach to the Theory of AnomaliesThe Energy Problem in Einstein's Theory of GravitationLagrangian Mechanics in Invariant FormEinstein and Several Contemporary Tendencies in the Theory of Elementary ParticlesA Mathematician's View of the Development of Physicsand other papersReadership: Mathematical physicists and mathematicians.Key Features:First ground-breaking book in English on Shanghai's water issues, which constitutes one of the essential elements for China's sustainable developmentCritical exploration and application of social theory to the Chinese contextComprehensive collection of first-hand data and information acquired in China and in-depth analysis through interviews with expertsHighlights of the transformation of Chinese society in environmental policy-making in the reform era with reference to newly emergent actors, private companies and environmental NGOsUp-to-date information and analysis of the water industry in Shanghai and ChinaReflection of the contribution of international development agencies to Shanghai's water policy-making