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In observance of the 2024 holiday season, Sage offices will be closed Monday December 23rd through Wednesday January 1st. Normal operations, including shipping for orders placed during the closure, will resume on Thursday January 2nd. For technical support during this time, please visit our technical support page for assistance options. 

We wish you a wonderful holiday season. Thank you. 

Lowenthal, Mark M.

Mark M. Lowenthal Intelligence & Security Academy, LLC

Mark M. Lowenthal has over forty-four years of experience in U.S. intelligence. He has served as the Assistant Director of Central Intelligence for Analysis and Production, Vice Chairman for Evaluation on the National Intelligence Council, staff director of the House Permanent Select Committee on Intelligence, office director and as a Deputy Assistant Secretary of State in the State Department's Bureau of Intelligence and Research (INR), and Senior Specialist in U.S. Foreign Policy at the Congressional Research Service, Library of Congress. He is now the President and CEO of the Intelligence & Security Academy, an education and consulting firm. Dr. Lowenthal received his BA from Brooklyn College and his PhD in history from Harvard University. He serves as an adjunct professor at the Johns Hopkins University; the National Intelligence University; Sciences Po (Paris); and the Norwegian Defence Intelligence School. He was an adjunct at Columbia University from 1993–2007.