* The Architecture of the United States Capitol (with John P. Reps, 2011)
* Historical Buildings of the District of Columbia (with George H. Davis, 2008)
* The White House: An Architectural History (with Richard Wilson and George H. Davis, 2008)
* The Capitol: An Illustrated History (2007)
* The Library of Congress: An Illustrated History (2005)
* The Smithsonian: An Illustrated History (2003)
* The Federal Courthouse in Washington, D.C.: An Architectural History (2001)
* The National Air and Space Museum: An Architectural History (1999)
Fiction:
* The Architect of the Capitol (2009)
* The White House Painter (2011)
* The Library of Congress Librarian (2013)
* The Smithsonian Scientist (2015)
* The Federal Courthouse Judge (2017)
* The National Air and Space Museum Director (2019)