The quality of most metal products depends on the condition of their surfaces and on surface change caused by wear. This collection of papers by distinguished authorities examines many of the different processes (corrosion, abrasion, spalling, etc.) that result in wear, and it offers a wealth of material on such factors as material composition, environment, and history of the manufacturing operation. The papers are presented in six major groupings: Fundamental Aspects of Wear; Pitting, Scoring, and Spalling; Corrosion; Abrasion; Wear Resistance Materials; and Manufacturing Processes. Charles Lipson provides a final section that summarizes the findings of the seventeen papers.