Craig Dirgo is an American

United States

The United States of America is a federal constitutional republic comprising fifty states and a federal district...

 author

Author

An author is broadly defined as "the person who originates or gives existence to anything" and that authorship determines responsibility for what is created. Narrowly defined, an author is the originator of any written work.-Legal significance:...

 of techno thrillers and adventure novel

Adventure novel

The adventure novel is a genre of novels that has adventure, an exciting undertaking involving risk and physical danger, as its main theme.-History:...

s, as well as non-fiction. He started off co-authoring with Clive Cussler

Clive Cussler

Clive Eric Cussler is an American adventure novelist and marine archaeologist. His thriller novels, many featuring the character Dirk Pitt, have reached The New York Times fiction best-seller list more than seventeen times...

 on his non-fiction work. He soon moved to his own novels starring his character, John Taft

John Taft

John Philip Taft is a retired professional ice hockey defenseman.Although Taft played 15 National Hockey League regular season games with the Detroit Red Wings in 1978–79, he spent most of his career in the minor leagues...

, an agent of a fictitious US spy agency, the National Intelligence Agency. He co-authored with Cussler the first two "Oregon Files" novels.

After running projects at Cussler's National Underwater and Marine Agency

National Underwater and Marine Agency

The National Underwater and Marine Agency , originally an organization within the fiction of author Clive Cussler, is a private non-profit organization in the United States...

 group since 1987, he became a trustee of the organization.

Early life

Dirgo was born to an Air Force Colonel, and spent much of his youth around American and British airfields. Having become interested in a collection of cars owned by Cussler, he eventually went to work for NUMA. From 1987 he was Special Projects director on several expeditions, and remains a trustee.

Non-fiction

(with Clive Cussler)

• The Sea Hunters: True Adventures With Famous Shipwrecks
  The Sea Hunters: True Adventures With Famous Shipwrecks
  The Sea Hunters: True Adventures with Famous Shipwrecks is a nonfiction work by adventure novelist Clive Cussler published in the United States in 1996. This work details the authors search for famous shipwrecks with his nonprofit organization NUMA. There is also a television series titled The...
  
  (1996)

• Clive Cussler and Dirk Pitt Revealed (1998)
• The Sea Hunters II: Diving the World's Seas for Famous Shipwrecks
  The Sea Hunters II: Diving the World's Seas for Famous Shipwrecks
  The Sea Hunters II: More True Adventures with Famous Shipwrecks is a nonfiction work by adventure novelist Clive Cussler published in the United States in 2002. This work details the author's continuing search for famous shipwrecks with his nonprofit organization NUMA. There is also a television...
  
  (2002)