Please circulate to all interested colleagues. ==================== A N N O U N C E M E N T ==================== CATEGORICAL METHODS IN ALGEBRA, TOPOLOGY AND COMPUTER SCIENCE WORKSHOP IN HONOUR OF JIRI ADAMEK AND WALTER THOLEN, ON THE OCCASION OF THEIR SIXTIETH BIRTHDAY October 26-28, 2007 University of Coimbra (Portugal) Organizers: Maria Manuel Clementino and Lurdes Sousa Web page: <http://www.mat.uc.pt/~cmatcs/> http://www.mat.uc.pt/~cmatcs/