X-Ray Diffraction Procedures for Polycrystalline and Amorphous Materials" by Harold P. Klug and Leroy E. Alexander is a seminal text in the field of X-ray crystallography, first published in 1954 by John Wiley & Sons in New York. This first edition hardcover spans 716 pages and provides a comprehensive exploration of X-ray diffraction techniques applicable to both polycrystalline and amorphous materials. The book delves into fundamental principles, including elementary crystallography, properties and production of X-rays, and the methodologies for analyzing diffraction patterns. It serves as an invaluable resource for scientists and engineers involved in material science, offering detailed procedures and theoretical insights pertinent to the study of material structures. The volume is bound in durable cloth-covered boards, measuring approximately 24 cm in height, and reflects the scholarly standards of mid-20th-century scientific publications. This original edition holds historical significance, marking a pivotal advancement in the analytical techniques of material characterization.