The book presents a comprehensive discussion on both theory and design of masonry structures built from clay and concrete masonry. Each chapter begins with introduction followed by discussion of theory of structural design using masonry as a structural material, which is quite general and not code-specific. The discussion is supplemented by several examples to illustrate the application of the principles involved. Engineering practice requires that structures be universally built according to building codes, which continue to change. Theory and examples presented in this book are referenced to building codes used in the United States.