Markus Krajewski is professor of media history at the University of Basel, Switzerland. He is the author of numerous articles and several books, including Paper Machines: About Cards and Catalogs, 1548–1929 and World Projects: Global Information Before World War I, which was awarded the 2007 Prize of the German Society for the History of Medicine, Science and Technology. He also works as a software developer and maintainer of his bibliography software Synapsen: A Hypertextual Card Index (www.synapsen.ch).Markus Krajewski is professor of media history at the University of Basel, Switzerland. He is the author of numerous articles and several books, including Paper Machines: About Cards and Catalogs, 1548–1929 and World Projects: Global Information Before World War I, which was awarded the 2007 Prize of the German Society for the History of Medicine, Science and Technology. He also works as a software developer and maintainer of his bibliography software Synapsen: A Hypertextual Card Index (www.synapsen.ch)....more