This reference work serves as a comprehensive guide to the visual documentation of Washington, D.C. held within the Library of Congress. Kathleen M. Collins, an experienced archivist, provides a structured inventory of the Prints and Photographs Division's holdings. The text functions as a finding aid for researchers, historians, and curators seeking to navigate the specific photographic collections related to the nation's capital.

Researchers and archivists frequently cite this volume as a foundational resource for navigating the specific complexities of the Library of Congress's visual archives. It is regarded as a standard reference tool for those conducting historical research on the development of Washington, D.C.