CT2007 INTERNATIONAL CATEGORY THEORY CONFERENCE Hotel Tivoli Almansor, Carvoeiro (Algarve), Portugal 17-23 June 2007 In the tradition of previous meetings held in White Point (2006), Vancouver (2004), Como (2000), Coimbra (1999), Vancouver (1997), Halifax (1995), Tours (1994), Isle of Thorns (1992), Montreal (1991) and Como (1990), a Conference on Category Theory will be held in Hotel Tivoli Almansor (http://www.algarvetivolialmansor.com/), Carvoeiro, a village near the sea in the region of Algarve (south of Portugal), from June 17 until June 23, 2007. We will take this occasion to celebrate the 70th birthday of F. William Lawvere. The arrival day is Sunday June 17. The scientific programme will begin Monday morning, June 18, and will finish before lunch on Saturday June 23. The programme will consist of conferences delivered by invited speakers and contributed talks. Scientific Committee: Samson Abramsky (Oxford, UK) Jirí Adámek (Braunschweig, Germany) Francis Borceux (Louvain, Belgium) George Janelidze (Cape Town, South Africa) Steven Lack (Sydney, Australia) Michael Makkai (Montreal, Canada) Manuela Sobral (Coimbra, Portugal) Ross Street (Sydney, Australia) Walter Tholen (Toronto, Canada) Updated information will be provided in the conference web page http://www.mat.uc.pt/~categ/ct2007/ The Organizing Committee, Diana Rodelo, University of Algarve (drodelo@ualg.pt) Manuela Sobral, University of Coimbra (sobral@mat.uc.pt) Maria Manuel Clementino, University of Coimbra (mmc@mat.uc.pt) Jorge Picado, University of Coimbra (picado@mat.uc.pt) Lurdes Sousa, IPViseu (sousa@infante.ipv.pt) Maria João Ferreira, University of Coimbra (mjrf@mat.uc.pt) Gonçalo Gutierres, University of Coimbra (ggutc@mat.uc.pt)