Building Materials is a textbook designed for undergraduate civil engineering students who are offered courses on Building and Construction Materials. The book primarily covers the AICTE syllabus on Materials, Testing, and Evaluation. It provides detailed and up-to-date information on various building and construction materials, including green materials. The book discusses the usual building materials like stones, bricks, lime, cement, aggregates, mortars, concrete and special concretes, wood, ferrous materials, steel, plastics, non-ferrous materials, glass, ceramic materials, plastics, paints, etc. Wherever necessary, the substitute materials and the greenness of the material are identified and explained. The book provides a thorough discussion of various materials using appropriate illustrations, real-life photographs, examples, and case studies for better understanding.