The General Council of IACM has started the selection procedure of the Plenary and Semi-Plenary Speakers for WCCM 2012. Nomination of candidates is underway until March 18th and a final round will be carried out afterwards, selecting 3 Plenary Speakers and 8 Semi-Plenary Speakers. For the remaining allotted sessions the speakers will be assigned by both the Local Organizing Committee and the Latin American Scientific Committee of WCCM 2012.