Credit: Jemal Countess/

Is Sarah Palin's upcoming memoir going to be a bestseller?

You betcha.

Due Nov. 17, the book - which had been finished early so that it could make it into stores ahead of the Christmas holiday shopping season - is already a top seller on shopping sites of and Barnes & Noble, a month-and-a- half before it hits shelves.

Going Rogue: An American Life -- which became available for pre-order this week on - is even outselling The Lost Symbol -- the latest novel from Da Vinci Code author Dan Brown.

"It obviously bodes well that there's so much interest and excitement," said Tina Andreadis, spokeswoman for HarperCollins, the book's publisher and a unit of Rupert Murdoch's News Corp.

Palin, 45, the conservative former governor of Alaska, became a household name last year as the Republican presidential nominee John McCain's running mate.