The best-selling author reached a new book deal a few weeks before his inauguration. A financial disclosure report released this week shows Obama amended his agreement with Crown Publishing Group to deliver a new nonfiction book after he leaves office.

Obama also approved an abridged version of his book, Dreams From My Father, suitable for middle-school or young adult readers.

The publisher is giving him a $754,000 advance for that. Obama did not say how much his deal for the new nonfiction book might be worth.

Obama received nearly US$2.5 million in book royalties last year.

The deal was first reported by The Washington Times. -- AP