Alan Slater is Reader in Developmental Psychology at the University of Exeter. He is the co-editor of The Blackwell Reader in Developmental Psychology (Blackwell, 1999), Introduction to Infant Development (OUP, 2006), and the co-editor with Gavin Bremner of Theories of Infant Development (Blackwell Publishing, 2004) and the forthcoming 5-volume reference work Infancy (SAGE, 2013). Gavin Bremner is Professor of Developmental Psychology at the University of Lancaster. He is the author and editor of many books, including the popular textbook, Infancy (Blackwell, 1994). He is co-editor of The Wiley-Blackwell Handbook of Infant Development (Wiley-Blackwell, 2010) and the 3-volume reference work Developmental Psychology (SAGE, 2004).