DigitalPreservationEurope (DPE), Preservation and Long-term Access through Networked Services (Planets), Cultural, Artistic and Scientific knowledge for Preservation, Access and Retrieval (CASPAR) and Network of expertise in Digital long-term preservation (nestor) are delighted to announce that they will be delivering the latest in a series of collaborative training initiatives to introduce the Preservation Challenges. This event will be held in Barcelona, Spain from March 23-27 2009.