REGISTRATION for the Workshop Categorical Methods in Algebra, Topology and Computer Science, in honour of Jiri Adamek and Walter Tholen, to be held in Coimbra, in October 26-28, 2007, is now OPEN, at the web page http://www.mat.uc.pt/~cmatcs/ If you plan to participate, please register as soon as possible. The number of rooms in the hotels indicated in the web page is limited, so early reservations are recommended.