Craigan Paul Shirley[1][2] (born September 24, 1956) is an American political consultant and author of several books on Ronald Reagan.

[8] In 1980, he ran an independent expenditure campaign supporting Reagan's presidential bid in the first six primary states on behalf of the Fund for a Conservative Majority.

Shirley produced and placed radio and newspaper ads in New Hampshire, South Carolina, Florida and three other states, using the Fund's $750,000 budget.

During the 1984 presidential campaign, Shirley was the Director of Communications for the National Conservative Political Action Committee.

[12] In 1991, Shirley ran an advertising and public affairs campaign supporting President Bush and Operation Desert Storm, later represented the Embassy of the State of Kuwait and was placed in charge of public relations for an international conference on democracy hosted in Prague by President Václav Havel of then Czechoslovakia.

His book December 1941: 31 Days That Changed America and Saved the World (2011) was a New York Times bestseller.