One of the two expected biographies of James Packer has been put on hold after a threat of legal action from the billionare.

Fairfax Media's The Australian Financial Review journalist Aaron Patrick had been due to publish a biography about the casino mogul.

One of the coming biographies on James Packer has been placed on hold. Credit:Louie Douvis

But in a tweet on Wednesday morning, Mr Patrick announced the project was on "indefinite hold" claiming there had been a threat of legal action.

"Due to the threat of legal action by Mr Packer my publisher and I have decided to place the biography of him on indefinite hold. He's a complex and interesting man and I look forward to reading the authorised account," he said.