[2][3] Chiaventone has written a number of screenplays and books to include, A Road We Do Not Know: A Novel of Custer at the Little Bighorn (1996) and Moon of Bitter Cold (2002).
One reviewer said of, A Road We Do Not Know..., "An immensely effective and affecting first novel...it offers a powerful, unsparing portrait of close combat on the frontier.
Chiaventone holds a master's degree in film and television production from San Francisco State University.
[3] His expertise lies in military history, guerilla warfare, counter terrorism, peacekeeping operations, and broadcast media.
Chiaventone was the historical advisor to film and television productions including, Ken Burns's The West, TNT's Rough Riders, and Two for Texas, which was the winner of the 1999 Western Heritage Award.
[2] An expert on guerrilla warfare and counter-insurgency, he was interviewed along with President George H. W. Bush for the Salvadoran television program "Frente-a-Frente" by the correspondent Gisele Duarte.