WORKSHOP ON DERIVED CATEGORIES CRM Barcelona November 5 to 14, 2007 Scientific organisers: Leovigildo Alonso Tarrio (Universidade de Santiago de Compostela) Ana Jeremias Lopez (Universidade de Santiago de Compostela) Amnon Neeman (Australian National University, Canberra) A specialised workshop on Derived Categories will be held at the CRM Barcelona from November 5 to 14, 2007, within a one-year research programme on current trends in Homotopy Theory, Category Theory, and related disciplines. The workshop has been planned so as to allow ample time for discussions and interaction with participants, with a few talks each day and open discussion sessions. The participation of young researchers is much encouraged. If you are interested in giving a talk or need financial support to participate, please contact any of the scientific organisers before October 15. Registration for the workshop can be made online at the address http://www.crm.cat/Derived_Categories/. For organisational inquiries, including lodging possibilities, please see the information given on the above website or contact the CRM Secretariat at Derived_Categories@crm.cat.