Dear PODC Community, The 4th workshop on Geometric and Topological Methods in Concurrent and Distributed Systems (GETCO) will be held immediately after DISC 2002 in Toulouse. We invite DISC participants to attend, if only to drop in for the first few sessions. The start of the workshop is a sequence of tutorials intended for a general audience, and might well give you something exciting to reflect on during your long trip home. Here is the preliminary program: http://www.di.ens.fr/~goubault/prog02.html respectfully, Maurice Herlihy