This textbook summarizes physical aspects of materials at atomic and molecular level, and discusses micro-structure of metals, alloys, ceramics and polymers. It further explains point defects, dislocations and surface imperfections, and the motions of atoms and molecular in solid state. As first volume in the set, it prepares students for further studies on phases and transitions which are discussed in the next volume.

• Presents physical structures of various materials.
• Explores defects and mechanisms in crystalline solids.
• Introductory textbook with abundant figures and examples for graduate students.