The Second IEEE WoWMoM Workshop on the Internet of Things: Smart Objects and Services, IoT-SoS 2013, will take place in Madrid, Spain. The aim of the workshop is to bring together practitioners and researchers from both academia and industry in order to have a forum for discussion and technical presentations on the recent advances in theory, application and implementation of the Internet of Things concepts: technologies, protocols, algorithms, and services. You can download the full call for papers here: PDF version, text version. The workshop is co-located with the 14th IEEE International Symposium on a World of Wireless, Mobile and Multimedia Networks (WoWMoM 2013).