David Easley and Jon Kleinberg have been awarded the 2011 Lanchester Prize by INFORMS, the professional society for Operations Research and the Management Sciences, for their book "Networks, Crowds, and Markets". The Lanchester Prize is awarded annually "for the best contribution to operations research and the management sciences published in English. The prize includes a commemorative medallion and a US $5,000 cash award. The award is given each year at the National Meeting if there is a suitable recipient.