The imposing presence of architecture captured in the absence of humans: that is the defining characteristic of Candida Höfer's photographs. In 1992 she photographed the Kunsthistorisches Institut of the University of Bonn in ten analogue black-and-white pictures that had never been publicly shown. In 2020 she returned to the institute to take more pictures with a digital camera. The two series are gathered in this book, a captivating historical and aesthetic comparison that probes how university life has changed over almost three decades.