Louis Esparza is co-author of Human Rights: A Primer (2nd ed) with Judith Blau. He is Assistant Professor of Sociology and Latin American Studies at California State University at Los Angeles. His work focuses on grassroots social movements, their organizations and their strategies. His articles are published in Contemporary Justice Review, Societies Without Borders, Environment & Society, and elsewhere. Louis has delivered talks across North and South America, Europe, and Japan; He has been teaching undergraduates for nine years. Louis has held research or teaching appointments at Sophia University in Tokyo, the Luis Angel Arango Library in Bogota, and the University of Denver. He sits on the Executive Board of the Society for the Study of Social Problems.