Former first lady Michelle ObamaMichelle LeVaughn Robinson ObamaMichelle Obama leads USA dodgeball against Corden's Team UK Michelle Obama to lead female celebrity dodgeball team in 'Late Late Show' face-off Obamas sign deal with Spotify to produce podcasts MORE's memoir, "Becoming," sold 3.4 million copies in 2018 and was the best-selling hardcover book of the year, The New York Post reported Tuesday.

Approximately 712,000 copies of Obama's book, which was released in November, were sold the week before Christmas, according to the Post, citing stats from NPD Bookscan, which tracks about 80 percent of the retail market.

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The Post reported that political books "Fire and Fury: Inside the Trump White House," by Michael Wolff, and "Fear: Trump in the White House," by Bob Woodward, also ranked as top-10 selling books in 2018.

NPD Bookscan announced in late November that the former first lady's book had sold 2 million copies, more than any other book published in the U.S. in 2018.

Obama embarked on a book tour to promote her memoir last year, sitting down with celebrities and engaging with audiences at arenas around the country and internationally.

The memoir covers her childhood, her career, her time in the political spotlight and her thoughts on the election of President TrumpDonald John TrumpNew EPA rule would expand Trump officials' powers to reject FOIA requests Democratic senator introduces bill to ban gun silencers Democrats: Ex-Commerce aide said Ross asked him to examine adding census citizenship question MORE.