Welcome to the 2nd International Congress on Invertebrate Morphology (ICIM), the venue that interconnects researchers from the International Society for Invertebrate Morphology and other societies interested in the morphology and evolution of invertebrate animals. The 2nd ICIM will be hosted by the Museum of Comparative Zoology, the Department of Organismic and Evolutionary Biology, and the Harvard Museum of Natural History, at Harvard University, from June 20th to June 23rd 2011.