CO oxidation is a classic model reaction in heterogeneous catalysis, as demonstrated by H.-J. Freund et al. in their Review on page 10 064 ff. The cover picture shows the Fritz Haber Institute in Berlin-Dahlem, which has a long tradition of research into heterogeneous reactions. In addition to Fritz Haber (top) six other Nobel Laureates have held positions there: Max von Laue, James Franck, Heinrich Wieland, Eugene Wigner, Ernst Ruska, and Gerhard Ertl.