Sen. Hillary Rodham Clinton (searchhas sold more than 1 million copies of her memoir Living History, in almost exactly a month, her publisher announced Wednesday.

"What has been particularly exciting is the speed with which it has achieved such unprecedented sales levels," Simon & Schuster (search) executive Carolyn Reidy said in a statement.

The company ordered 1 million copies for the first printing, an extraordinarily high number for a nonfiction book.

"It feels pretty good," Clinton, D-N.Y., said. "I'm excited that this all happened in a month. I'm a little surprised."

Living History hit stores June 9 amid a wave of publicity and promotional appearances by the former first lady.

First-day sales topped 200,000, and the publisher quickly announced that it would print even more copies to keep pace with demand.

Clinton signed an $8 million deal to write the book, in which she recounts, among other things, her personal pain and shock at her husband's affair with White House intern Monica Lewinsky (search).

To promote sales, the New York Democrat launched a media blitz and appeared at a number of book-signing events, where fans waited on line for hours.

The intense public interest fueled speculation that Clinton may someday run for president.

When Congress was in recess last week, she traveled to Europe for a series of book-signing appearances.