Winning the Man Booker prize twice -- and being the first woman to do so - is plenty publicity to push book sales, but it appears Hilary Mantel just earned herself a bit more.

The Brit author, who wrote the lauded novels "Wolf Hall" and "Bring Up The Bodies," has sparked a fevered debate over her commentary that called the Duchess of Cambridge "a shop-window mannequin" without any personality who is only defined by her wardrobe.

But all the attention seems to have another side effect: a spike in book sales, NPR reports. The U.K.'s Telegraph also found that "Wolf Hall" and "Bring Up The Bodies" scaled a few spots on Amazon's book charts in the midst of the uproar.

The paperback edition of "Wolf Hall," the first book in Mantel's trilogy about King Henry VIII's chief minister Thomas Cromwell, is at No. 3 on Amazon U.K.'s list of best-selling historical fiction. The hardcover of "Wolf Hall's" follow-up, "Bring Up The Bodies," is at No. 5.

At the time of this post, the Kindle editions of "Wolf Hall" and "Bring Up The Bodies" weren't doing too shabby on the U.S. historical fiction best-seller list, with "Wolf Hall" at No. 13 and "Bring Up the Bodies" at No. 17.

According to The Bookseller, U.K. publisher Fourth Estate has seen around a "100 percent increase in [e-book] sales of 'Wolf Hall' [Tuesday] as compared to the day before."