NEW YORK — Former President Barack Obama's "A Promised Land" sold nearly 890,000 copies in the U.S. and Canada in its first 24 hours, putting it on track to be the best selling presidential memoir in modern history.

The first-day sales, a record for Penguin Random House, includes pre-orders, e-books and audio.

"We are thrilled with the first day sales," said David Drake, publisher of the Penguin Random House imprint Crown. "They reflect the widespread excitement that readers have for President Obama's highly anticipated and extraordinarily written book."

The only book by a former White House resident to come close to the early pace of "A Promised Land" is the memoir by Obama's wife, Michelle Obama, whose "Becoming" sold 725,000 copies in North America its first day and has topped 10 million worldwide since its release in 2018. "Becoming" is still so in demand that Crown, which publishes both Obamas and reportedly paid around $60 million for their books, has yet to release a paperback.

As of midday Wednesday, "A Promised Land" was No. 1 on Amazon.com and Barnes & Noble.com. James Daunt, CEO of Barnes & Noble, said that the superstore chain easily sold more than 50,000 copies its first day and hoped to reach half a million within 10 days.

"So far it has been neck and neck with Michelle Obama's book," he said.

By comparison, Bill Clinton's "My Life" sold around 400,000 copies in North America its first day and George W. Bush's "Decision Points" around 220,000, with sales for each memoir currently between 3.5 and 4 million copies. The fastest-selling book in memory remains J.K. Rowling's seventh and final Harry Potter novel, "Harry Potter and the Deathly Hallows," which came out in 2007 and sold more than 8 million copies within 24 hours.

Obama's 768-page memoir, which came out Tuesday and has a list price of $45, had unusually risky timing for a book of such importance to the author, to readers and to the publishing industry. It came out just two weeks after Election Day and could have been overshadowed had the race still been in doubt or perhaps unwanted by distressed Obama fans if President Donald Trump had defeated Democratic nominee Joe Biden. But Biden won, and his victory likely renews interest in an era when he was Obama's trusted and popular vice president.

8 years of an Obama-Biden 'bromance,' in photos: