Kate Sampsell-Willmann provides the first comprehensive examination of Lewis H. Hine, a pioneer of social documentary photography. The book evaluates Hine's work through his photographs, political ideologies, and dedication to labor dignity, positioning him within the Progressive Era. It explores his links to movements and institutions like the Works Progress Administration and Chicago School of Social Work. Hine's career is contrasted with peers such as Jacob Riis and Dorothea Lange, emphasizing his role in shaping socially conscious American photography. Illustrated with Hine's images, the book connects his artistic vision with urban history and social democracy.