'Bottled Ketchup', c 1910.
© National Media Museum / Science & Society Picture Library
Photograph taken by Lewis Wickes Hine (1874-1940), showing workers in a ketchup factory. One of a series of images of men and women at work. Trained as a sociologist, Hine used photography as a documentary tool to inspire social reform. For instance, his ground- breaking documentation of child labour was instrumental in the passage of child labour laws. Many of his most famous images show the conditions of immigrant life in the USA, and they reveal both the horror of exploitation and the dignity of work.