LC Prints and Photographs The Library of Congress provides helpful research tips to locate images. Many of these are free to use. Unique in their scope and richness, the prints and photographs collections today number more than 14 million images. These include photographs, fine and popular prints and drawings, posters, and architectural and engineering drawings. While international in scope, the collections are particularly rich in materials produced in, or documenting the history o areacongressdivisionhomelibrarypageprintreadingroomstudies in Art > Art Historywith art_historyimages