Providing a working understanding of materials physics without the typical lengthy and exhaustive discussions found in other books, The Materials Physics Companion offers an accessible introduction to the most important concepts of materials physics. Following the style of the author’s other companions, the book illustrates key concepts and principles in clear, one-page, figure-rich descriptions, along with worked examples and review questions. The author reviews the areas of crystallography, quantum mechanics, solid state physics, and x-ray diffraction, before focusing on the dielectric and magnetic properties of materials.