Amazon.com description: Product Description: A knowledge of crystallography opens the door to a clearer understanding of topics in physics, chemistry, and other disciplines. In this new text, basic ideas in crystallography and diffraction are explained simply and comprehensively. The physical concepts and geometrical features common to diffraction modes are emphasized by simple analogies and demonstrations, with special attention paid to two-dimensional patterns and symmetry. The book, written by an experienced teacher, is an ideal introduction for students.