Anisotropic Elasticity: Theory and Applications by T. C. T. Ting is a comprehensive and well-structured book on the fundamental theory of linear anisotropic elasticity and its applications, with a focus on two-dimensional theory. The book consists of 15 chapters, starting with an introductory chapter on matrix algebra, followed by a discussion of stress-strain laws for anisotropic materials and anti-plane shear deformations. The core of the book is devoted to the Stroh formalism, an algebraic method developed by A. N. Stroh, which is presented in detail in chapters 5–7. The book also includes applications of the Stroh formalism to various topics such as Green's functions, stress singularities, and anisotropic materials with cracks or inclusions. The final chapters discuss degenerate materials, generalizations of the Stroh formalism, and three-dimensional deformations. The book is well-referenced and includes an author and subject index. The author hopes that this book will be useful for both beginners and advanced researchers in the field of anisotropic elasticity. The reviewer believes that this is a carefully written and authoritative account of the fundamental mathematics and mechanics of anisotropic linear elasticity, and that it will become a classic reference book on the subject. The Stone Skeleton: Structural Engineering of Masonry Architecture by Jacques Heyman explores the structural design of ancient and medieval buildings, emphasizing the use of stone and the principles of masonry construction. Heyman discusses how the understanding of structural design changed after Galileo's work in 1638, leading to a focus on stress analysis in modern engineering. He contrasts this with the methods used by ancient masons, who relied on geometric shapes and natural forms to achieve structural stability. The book highlights the durability of ancient masonry structures, which have withstood earthquakes and bombings. The author also references Hooke's work in 1675, which illustrates the principles of stone construction used by ancient masons.Anisotropic Elasticity: Theory and Applications by T. C. T. Ting is a comprehensive and well-structured book on the fundamental theory of linear anisotropic elasticity and its applications, with a focus on two-dimensional theory. The book consists of 15 chapters, starting with an introductory chapter on matrix algebra, followed by a discussion of stress-strain laws for anisotropic materials and anti-plane shear deformations. The core of the book is devoted to the Stroh formalism, an algebraic method developed by A. N. Stroh, which is presented in detail in chapters 5–7. The book also includes applications of the Stroh formalism to various topics such as Green's functions, stress singularities, and anisotropic materials with cracks or inclusions. The final chapters discuss degenerate materials, generalizations of the Stroh formalism, and three-dimensional deformations. The book is well-referenced and includes an author and subject index. The author hopes that this book will be useful for both beginners and advanced researchers in the field of anisotropic elasticity. The reviewer believes that this is a carefully written and authoritative account of the fundamental mathematics and mechanics of anisotropic linear elasticity, and that it will become a classic reference book on the subject. The Stone Skeleton: Structural Engineering of Masonry Architecture by Jacques Heyman explores the structural design of ancient and medieval buildings, emphasizing the use of stone and the principles of masonry construction. Heyman discusses how the understanding of structural design changed after Galileo's work in 1638, leading to a focus on stress analysis in modern engineering. He contrasts this with the methods used by ancient masons, who relied on geometric shapes and natural forms to achieve structural stability. The book highlights the durability of ancient masonry structures, which have withstood earthquakes and bombings. The author also references Hooke's work in 1675, which illustrates the principles of stone construction used by ancient masons.