The IMU Executive Committee consists of ten voting members elected for four-year terms: the four officers (president, two vice presidents, and secretary) and six other members. The IMU General Assembly 2006 in Santiago de Composela increased the number of members at large from five to six. The retiring president is an ex officio member of the Executive Committee without vote for a period of four years. The current members (term January 1, 2011 to December 31, 2014) of the IMU Executive Committee are from left to right on the picture below taken at the IMU EC meeting in Rio de Janeiro, Brazil, April 22/23, 2012: M. Viana, W. Werner, L. Lovász, I. Daubechies, C. Praeger, M. de León, V. Srinivas, J.F. Toland, C. Rousseau, Y. Long, M. Grötschel.