Dear Colleagues, I'm writing to invite you to indicate your interest in making a vertex detector related presentation at the Linear Collider workshop being held in downtown Chicago, January 7-9. The announcement for the meeting can be found at http://LCworkshop.uchicago.edu/ This workshop is planned to expand the linear collider studies in the U.S. and Canadian communities, following the successful Snowmass studies and the recommendations of the HEPAP subpanel. There will be parallel sessions on the second day of the workshop, including at least one session devoted to tracking/vertexing issues. You may already have been contacted by Keith Riles regarding our plan to hold the joint tracking/vertexing session. If you wish to make a presentation related to vertexing issues, including simulation studies or detector R&D, please send me a title and requested time allotment by the end of November, if possible. A brief abstract would also be helpful. I look forward to seeing you at the workshop in January. Best regards, Jim Brau _______________________ James E. Brau Physics Department and Center for High Energy Physics 1274 University of Oregon Eugene, OR 97403-1274 (541) 346-4766