This textbook provides an introduction to corrosion science for graduate and advanced undergraduate students, with a focus on physical chemistry and materials science. It is also useful for practicing corrosion and materials engineers seeking to understand the fundamental principles of corrosion. The book assumes prior knowledge of materials science or physical chemistry, but not electrochemistry. It covers basic principles of corrosion science, emphasizing corrosion in aqueous environments and including a chapter on high-temperature oxidation. The text avoids extensive case histories, specific applications, and data compilations, instead offering a concise yet rigorous introduction. It includes problems with answers at the end of each chapter and references for further reading. The author acknowledges mentors and colleagues who contributed to the development of the book. The content is organized into chapters covering topics such as the societal aspects of corrosion, electrochemical reactions, charged interfaces, thermodynamics of corrosion, kinetics of corrosion, passivity, crevice and pitting corrosion, mechanically assisted corrosion, corrosion inhibitors, corrosion under organic coatings, AC impedance, high-temperature oxidation, selected topics in corrosion science, and the beneficial aspects of corrosion. The book also includes appendices with additional information and references.This textbook provides an introduction to corrosion science for graduate and advanced undergraduate students, with a focus on physical chemistry and materials science. It is also useful for practicing corrosion and materials engineers seeking to understand the fundamental principles of corrosion. The book assumes prior knowledge of materials science or physical chemistry, but not electrochemistry. It covers basic principles of corrosion science, emphasizing corrosion in aqueous environments and including a chapter on high-temperature oxidation. The text avoids extensive case histories, specific applications, and data compilations, instead offering a concise yet rigorous introduction. It includes problems with answers at the end of each chapter and references for further reading. The author acknowledges mentors and colleagues who contributed to the development of the book. The content is organized into chapters covering topics such as the societal aspects of corrosion, electrochemical reactions, charged interfaces, thermodynamics of corrosion, kinetics of corrosion, passivity, crevice and pitting corrosion, mechanically assisted corrosion, corrosion inhibitors, corrosion under organic coatings, AC impedance, high-temperature oxidation, selected topics in corrosion science, and the beneficial aspects of corrosion. The book also includes appendices with additional information and references.