Danielle Steel - US $375 Million

Danielle Steel is an American novelist whose bestsellers have earned her sales of 800 million copies. Steel is a native of New York City and is known for catering to different genres like fiction, non-fiction, children novels and romance. Steel has been a permanent fixture on the New York Times as at least one of her books remained as a top bestseller for 381 weeks consecutively. Steel was also listed in the Guinness Book of world records.