All Erlang developers, researchers, users, programmers, and interested persons are hereby cordially invited to the 12th International Erlang User Conference, EUC. Presentations could be academic papers, project reports, over-head slides etc. Please see previous EUC proceedings for examples. Demos to be shown during intermissions are also welcome. For the day after the EUC (November 10) three large conference rooms have been reserved for related seminars or discussions. Proposals for suitable topics are also welcome. Dead-line for submissions is October 15. Hotell Älvsjö offers rebate rates from November 8 to November 10 for EUC participants. Don't forget to mention "Erlang". All submissions and questions shall be directed to euc@erlang.se.