First day sales for Michelle Obama’s “Becoming” topped 725,000 copies, making it one of the year’s biggest debuts.

Reports say that the figures include sales and pre-orders for the former first lady’s memoir include hardcover, audio and e-books editions for the United States and Canada. The book follows Obama’s journey from Chicago’s South Side to the White House, and many reviews have been positive. The Washington Post praised it as “impressive balance in telling the truth of her challenges while repeatedly acknowledging her lucky life.”

The book was released earlier this week and Crown (publisher) also announced that it had raised the book’s print run from 1.8 million copies to 2.6 million following the successful release.

“Becoming” had the biggest opening of any books in 2018 by Crown’s parent company (Penguin Random House).