Judith Blau is professor of sociology at the University of North Carolina, Chapel Hill, and president of the U.S. chapter of Sociologists without Borders. She is the author or editor of numerous books, including The Shape of Culture, Race in the Schools, and The Blackwell Companion to Sociology, and is currently the editor of Social Forces. Alberto Moncada is professor of sociology at the University of Madrid and president of Sociologists without Borders. He is founder of the University of Piura, Peru and its first Prorector and has served as consultant to UNESCO and the Council of Europe. Moncada is the author of over 30 books on migration, sociology of education, sociology of religion, and the media.