We are pleased to announce that the R user conference useR! 2013 is scheduled for July 10-12, 2013, and will take place at the University of Castilla-La Mancha, Albacete, Spain. As for the predecessor conferences, the program will consist of two parts: invited lectures and user-contributed sessions (abstract submission will be available soon). Prior to the conference, there will be tutorials on R (proposals for tutorials should be sent before December 15, 2012, see below). CONFIRMED INVITED SPEAKERS Mar?a Jes?s Bayarri, Jos? Manuel Ben?tez-S?nchez, Havard Rue, Steve Scott and Hadley Wickham USER-CONTRIBUTED SESSIONS The conference will feature both talks and posters illustrating the use of R in practice. Contributions are welcome that introduce recent developments in the R Project (including CRAN packages), demonstrate applications of R in areas of current interest, or otherwise engage and inspire participants in their use of R. PRE-CONFERENCE TUTORIALS Before the official program, half-day tutorials will be offered on Tuesday, July 9. We invite R users to submit proposals for three hour tutorials on special topics regarding R. The proposals should give a brief description of the tutorial, including goals, detailed outline, justification of why the tutorial is important, background knowledge required and potential attendees. The proposals should be sent before December 15, 2012 to useR-2013_at_R-project.org. A web page offering more information on the `useR!' conference is available at http://www.R-project.org/useR-2013 We hope to see you in Albacete! The organizing committee: Esteban Alfaro, Jos? Luis Alfaro, M. Teresa Alonso, Emilio L. Cano, Gonzalo Garc?a-Donato, Mat?as G?mez, Noelia Garc?a, Virgilio G?mez-Rubio, Mar?a Jos? Haro, Eva J. Moreno and Francisco Parre?o.