In the beautiful meeting room of Senate of the Vienna University, Lieselotte Ahnert (University of Vienna/Austria, standing) introduced Marion Krämer (to her left) from the editorial office at Springer Verlag as well as six authors of “Theories in Developmental Psychology” who explained their work on the chapters (from left: Andreas Krapp (University of Munich/Germany) and Harald Euler (University of Kassel/Germany); from the right: Birgit Elsner (University of Potsdam/Germany), Michael Wininger (University of Vienna/Austria), Angela Ittel (Technical University of Berlin/Germany) and Hendrik Hasselbeck (University of Vienna/Austria).