The conference 'Dérivateurs à Barcelone’, on Grothendieck derivators, will take place in the University of Barcelona from Tuesday 1 to Friday 4 September 2015. The list of speakers is: Denis-Charles Cisinski (Toulouse) Martin Gallauer Alves de Souza (Zurich) Moritz Groth (MPIM) Fritz Hörmann (Freiburg) Georges Maltsiniotis (Jussieu) Kate Ponto (Kentucky) George Raptis (Regensburg) Jan Stovicek (Prague) Gonçalo Tabuada (MIT) (confirmation pending) It will have a workshop format with introductory talks during the first day. Hence, anyone potentially interested in derivators can catch up on the talks on the current state of the art and applications planned for the following days. There will be room for a very limited amount of contributed talks. We can also offer some grants covering lodging and/or the conference fee (75€). A web page with this and other relevant information will be ready very soon, but you can already register by sending an email to congres.dab2015@ub.edu indicating: Full name: Institution: Do you need help to find an accommodation? If so, please indicate your expected arrival/departure dates: Would you like to present a contributed talk? Would you like to apply for a grant? Best regards, — The organizing committee Leo Alonso (Santiago de Compostela) Carles Casacuberta (Barcelona) Ana Jeremías (Santiago de Compostela) Georges Maltsiniotis (Jussieu) Fernando Muro (Sevilla) [For admin and other information see: http://www.mta.ca/~cat-dist/ ]