The International Congress of Infant Studies (ICIS) is a not-for-profit professional organization devoted to the promotion and dissemination of research on the development of infants through its official journal and a biennial conference where researchers and practitioners gather and discuss the latest research and theory in infant development. The XXI Bi-Ennial Conference is being held in Philadelphia, PA June 30 – July 3, 2018 and is a celebration of our 40th Anniversary with the theme of Building Bridges as we look at bridging the multiple disciplines surrounding the study of infants.