Hamill has authored more than 20 books, including News Is a Verb: Journalism at the End of the Twentieth Century and A Drinking Life, as well as the novels Forever and North River. His novel Tabloid City will be published in the spring of 2011. Hamill has reported on wars in Vietnam, Nicaragua, Lebanon, and Northern Ireland. He has been a columnist for the New York Post, the New York Daily News, and New York Newsday, the Village Voice, New York magazine, and Esquire. The New York Times has called Hamill a "chronicler of vintage New York City and newspaper tabloids and boozy Greenwich Village literary haunts."