John Michael Crichton was an American author, screenwriter, and filmmaker. His books have sold over 200 million copies worldwide, and over a dozen have been adapted into films. His literary works heavily feature technology and are usually within the science fiction, techno-thriller, and medical fiction genres.

He used the aliases John Lange, Michael Douglas, and Jeffery Hudson.

John Michael Crichton was an American author, screenwriter, and filmmaker. His books have sold over 200 million copies worldwide, and over a dozen have been adapted into films. His literary works heavily feature technology and are usually within the science fiction, techno-thriller, and medical fiction genres.

He used the aliases John Lange, Michael Douglas, and Jeffery Hudson.