This book constitutes the thoroughly refereed post proceedings of two international workshops on special aspects of digital libraries, namely the First International Workshop on Natural Language Processing for Digital Libraries, NLP4DL 2009, held in Viareggio, Italy in June 2009 and the CACAO Project Workshop Advanced Technologies for Digital Libraries, AT4DL 2009, held in Trento, Italy in September 2009. A new open call was sent after the workshops. The revised full papers presented at the workshops and the newly submitted ones went through two rounds of reviewing and revision. The 10 papers selected address various aspects of NLP in digital libraries, search, classification, and digital document processing.