Alexander Gardner, renowned for his Civil War photography, also played a significant role in the international workers' rights movement. This book explores Gardner’s dual impact through his photography and activism, linking his work in Scotland and the U.S. and uncovering their shared ideological basis. It offers new insights by analyzing his Photographic Sketch Book of the War as a politically charged project aligned with his Chartist and Owenite beliefs, particularly its portrayal of slavery’s impact on America’s democratic image. The book also highlights Gardner’s portraits celebrating Northern labor communities and immigrant workers and discusses his vision of a national infrastructure that integrated photographers. This work enriches the understanding of his photography within broader discussions on democracy, industrialization, and civil rights, making it a valuable resource for scholars in related fields.