Richard McElreath (born 18 April 1973) is an American professor of anthropology and a director of the Max Planck Institute for Evolutionary Anthropology in Leipzig, Germany. He is an author of the Statistical Rethinking applied Bayesian statistics textbook, among the first to largely rely on the Stan statistical environment, and the accompanying rethinking R language package. He earned his B.S. at Emory University in 1995 and a Ph.D. in anthropology under Robert Boyd at the University of California, Los Angeles in 2001 with field research in Tanzania. Source: Wikipedia (en)