MShriver061711_07_X17230WM.jpgMaria Shriver is reportedly being offered an excess of $15 million for a tell-all book about her life ... and the drama surrounding her failed marriage to Arnold Schwarzenegger.

Shriver is already a best-selling author of two books: And One More Thing Before You Go … and What’s Happening to Grandpa?

Schwarzenegger's estranged wife has yet to confirm whether she will accept the alleged offers. Various online reports suggest the book deal will not move forward until the couple finalize their divorce.

Shriver's camp, so far, has not commented.