Renowned author and sea explorer Clive Cussler has died.
He was 88.
According to CNN, his family made the announcement on Monday, in a Facebook post.
Cussler had a Ph.D.
In maritime history.
He was known for his books about underwater shipwreck discoveries -- both fiction and nonfiction.
His books were published in more than 40 languages in over 100 countries.
He was so passionate about maritime discoveries, he even started a nonprofit dedicated to them.