Gert Westermann is Professor of Psychology at Lancaster University. He is the Director of the Leverhulme Doctoral Scholarship Programme in Interdisciplinary Research on Infant Development and currently holds a British Academy/Leverhulme Trust Senior Research Fellowship. Nivedita Mani is Professor of Psychology at Georg-August-Universität Göttingen in Germany. In 2014 she won the Fritz-Behrens Stiftung’s Science Prize and became a Member of Göttingen Academy of Sciences and Humanities in 2017.