Dear Colleagues, We are pleased to announce the return of the International Vacuum Electronics Conference to the picturesque and historic city of Monterey, California. The conference will take place at the Portola Plaza Hotel and will be held on April 22-24, 2008. Plenary talks will provide insights into the broad spectrum of scientific issues and applications that are driving the current directions in vacuum electronics research. In particular, a number of topical scientific and commercial applications will be highlighted, including digital broadcasting, high data-rate communications, medical applications, and RF accelerator technology for high energy physics. Technical presentations will span the range from UHF to THz frequencies and will present current work in theory and computational tool development, active and passive components, systems, and supporting technologies. Developers of systems will find that IVEC provides a unique snapshot into the current state-of-the-art in vacuum electronic devices. These devices continue to provide unmatched power and performance for advanced electromagnetic systems, particularly in the challenging frequency regimes of millimeter-wave and THz electronics. We invite you to submit papers to IVEC to report on your work and experiences in vacuum electronics. The meeting will be configured to maximally disseminate useful information to device users, manufacturers, academics, and students. We encourage submission of papers from all groups. A special IVEC Award for Excellence and a Student Paper Award will be granted at the conference. As in past conferences, the meeting and social events will provide a unique opportunity to renew or establish new friendships with colleagues, interact with customers and end-users, and meet students and academic researchers. We hope to see you all at IVEC 2008. Sincerely, The IVEC 2008 Organizing Committee