Dear Friends, Enclosed is an announcement of the TESLA Colloquium where the TDR will be presented and discussed. Our European colleagues would be very pleased with a good participation from U.S. physicists. Also, please note and mark your calendars for the Workshop of the North American Linear Collider group, to be held from March 19 - 21 at Johns Hopkins University in Baltimore MD. More details on registration and program will be available soon. with regards Charlie Baltay and Paul Grannis ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Dear Colleagues, You are cordially invited to the COLLOQUIUM SCIENTIFIC PERSPECTIVES AND TECHNICAL REALISATION OF TESLA 23 / 24 MARCH 2001 AT DESY IN HAMBURG The Institutes which have contributed in an international effort to the TECHNICAL DESIGN REPORT of the 500 GEV e+ e- Linear Collider with X-Ray Free Electron Laser Facility TESLA will present its Perspectives for Particle Physics and Science with X-Ray Free Electron Lasers as well as its Technical Realisation. Friday , 23 March 2001, 2.00 p.m. - Saturday 24 March 2001, 2.30 p.m. For Program and Registration : http://www.desy.de/tesla_colloquium Registration before 30 Jan would be helpful for the organisation. For the Organizing Committee A.Wagner Deutsches Elektronen - Synchrotron DESY Hamburg Tesla_Colloquium Tel:++49-40-8998-2800, Fax:++49-40-8998-2400, email:[log in to unmask]