President Obama has made more than a tidy $15 million from his books since he published his first - Dreams from My Father - in 1995, and now he's set to earn another $15 to $20 million - or even more - from his forthcoming presidential memoir.

Axar.az reports citing to DailyMail.com.

And high-ranking publishing insiders are talking at least another '$20 million' in an advance paycheck for First Lady Michelle Obama's long-awaited - and highly anticipated - memoir about her eight White House years.

A source claims she's been quietly working on her book already.