The discovery in the 19th century and the subsequent impressive development of photography in the 20th century have overthrown the 400 year monopoly of engravings for the propagation of artworks. Art historical books could be illustrated with numerous reproductions, first with black-white photographs and from the mid of the 20th century also more and more in colour. These photographs were also collected in huge 'photo-archives'. The advent of 'digital photography', allowing unlimited pictures at no additional costs and with its powerful post-processing tools, combined with the immense possibilities of internet, is a new step in the dissemination processes of artworks. The purpose of this post is to highlight two well-known 'old' photo-archives: - Bildarchiv Foto Marburg, founded in 1913 - Warburg Photographic Collection, since 1933 in London and to draw attention to a new and very special one: 'SquinchPix - European Image Archive' Read more here: http://kbender.blogspot.be/2012/02/photo-archives-old-and-new.html?view=magazine