Todd M. Johnson is Associate Professor of Global Christianity and Director of the Center for the Study of Global Christianity at Gordon-Conwell Theological Seminary. Johnson is visiting Research Fellow at Boston University's Institute for Culture, Religion and World Affairs leading a research project on international religious demography. He is co-editor of the Atlas of Global Christianity (Edinburgh University Press) and co-author of the World Christian Encyclopedia (Oxford University Press, 2nd ed.) and World Christian Trends (William Carey Library). He is editor of the World Christian Database (Brill) and co-editor of the World Religion Database (Brill). He is married to Tricia and has three daughters.