Susan Hespos is Professor of Infant Studies at MARCS at Western Sydney University and Professor of Psychology at Northwestern University in Evanston, Illinois, USA. She leads a research program on understanding our earliest evidence of cognitive capacities in infancy and what changes over development. Hespos received her doctoral degree in Psychology from Emory University in 1996. In 2001, she was appointed Assistant Professor of Psychology and Human Development at Vanderbilt University. In 2005, she joined the Northwestern Psychology Department where she was promoted to Associate Professor and Full Professor. Her research has been supported by National Science Foundation for 15 years. Her work is published widely in top journals in cognitive and developmental psychology, including Nature, Proceedings of the National Academy, Psychological Science and Cognition.