This book, "Deformation and Fracture Mechanics of Engineering Materials" by Richard W. Hertzberg, is a comprehensive compilation of classical and current knowledge on plastic deformation and fracture in materials. The first section covers macroscopic aspects of plastic deformation, dislocation theory, deformation twinning, deformation texturing, and high-temperature deformation, including superplasticity and deformation mechanism maps. The second section focuses on fracture mechanics, emphasizing design philosophy and the impact of microstructural, metallurgical, and environmental factors on fracture toughness. The author also discusses fatigue and fatigue crack propagation, though the treatment of fatigue crack initiation is brief. The final chapter applies fracture mechanics to failure analysis through case studies. The book is well-suited for mechanical metallurgists and design engineers, serving as a valuable reference and a text for graduate courses.This book, "Deformation and Fracture Mechanics of Engineering Materials" by Richard W. Hertzberg, is a comprehensive compilation of classical and current knowledge on plastic deformation and fracture in materials. The first section covers macroscopic aspects of plastic deformation, dislocation theory, deformation twinning, deformation texturing, and high-temperature deformation, including superplasticity and deformation mechanism maps. The second section focuses on fracture mechanics, emphasizing design philosophy and the impact of microstructural, metallurgical, and environmental factors on fracture toughness. The author also discusses fatigue and fatigue crack propagation, though the treatment of fatigue crack initiation is brief. The final chapter applies fracture mechanics to failure analysis through case studies. The book is well-suited for mechanical metallurgists and design engineers, serving as a valuable reference and a text for graduate courses.