Dear Colleagues, We are glad to announce that the conference "Category Theory, Algebra and Geometry" will be held at the Universite Catholique de Louvain on Thursday 26 and Friday 27 of May. The programme is available at the address: http://perso.uclouvain.be/tim.vanderlinden/ctag.html The invited speakers are: Eugenia Cheng (University of Sheffield) Maria Manuel Clementino (Universidade de Coimbra) Rene Guitart (Universite Paris Diderot) Kathryn Hess Bellwald (Ecole Polytechnique Federale de Lausanne) Peter Johnstone (University of Cambridge) Andre Joyal (Universite du Quebec a Montreal) Tom Leinster (University of Glasgow) Sandra Mantovani (Universita di Milano) Ieke Moerdijk (Univesiteit Utrecht) Ross Street (Macquarie University) Isar Stubbe (Universite du Littoral-Cote d'Opale) During this conference, Professor Ross Street will deliver the last two talks of a series of lectures entitled "Monoidal categories in, and linking, geometry and algebra" on the occasion of the "Chaire de la Vallee Poussin 2011". For more information, see http://www.uclouvain.be/15551.html The first two lectures will be delivered by Professor Street on Tuesday 24 and Wednesday 25 of May. In particular, the "lecon inaugurale" on Tuesday 24, entitled "From linear algebra to knot theory, via categories", will be accessible also to mathematicians who are not specialists in Category Theory. Please do not hesitate to contact us if you intend to participate in this mathematical week in Belgium! With our best wishes, the organizing committee Francis Borceux, Marino Gran, Dominique Lambert, Tim Van der Linden and Enrico Vitale [For admin and other information see: http://www.mta.ca/~cat-dist/ ]