Computer Science Logic

The annual conference of the European Association for Computer Science Logic (EACSL), CSL 2008, was held in Bertinoro, near Bologna (Italy), September 16 19, 2008. The conference series started as a program of International Wo- shops on Computer Science Logic, and then at its sixth meeting became the Annual Conference of the EACSL. This conference was the 22nd meeting and 17th EACSL conference; it was organized by the Department of Computer S- ence of Alma Mater Studiorum Universita` di Bologna. CSL2008wasprecededonMonday,September15thbythesymposiumBri- ing Logic and Computer Science on the occasion of the 60th birthday of Johann A. Makowsky. In response to the call for papers, a total of 102 abstracts were submitted to CSL 2008 of which 87 were followed by a full paper. The Program Committee selected 31 papers for presentation at the conference and publication in these proceedings,during a one-weekelectronicdiscussion on the EasyChairplatform; each paper was refereed by three to ?ve reviewers. The Program Committee invited lectures from Luca Cardelli, Pierre-Louis Curien, Jean-PierreJouannaud,and Wolfgang Thomas. The papers providedby the invited speakers appear at the beginning of this volume. Createdin 2005,the AckermannAwardis the EACSLOutstanding Disser- tion Awardfor Logicin Computer Science, sponsoredfor the years2007-2009by LogitechS.A. The awardrecipientfor 2008wasKrishnenduChatterjee,who was invited to present his work at the conference. Citation for the award, abstract of the thesis, and a biographical sketch of the recipient may be found at the end of the proceedings.