From original manuscripts and letters to sound recordings and birth certificates, archival information plays an increasingly important role in modern research. This definitive guide shows novice and experienced researchers how to find archival information, covering government archives, science and technology collections, military archives, genealogical records, business and corporate archives, performing arts archives, and sports collections. Also provided is an overview of the world of archives, including archival terminology, how to contact archives, and archival etiquette.