Now the former president's new memoir, "A Promised Land," is breaking records for the book's publisher, Crown, an imprint of Penguin Random House.
Hundreds of thousands of people pre-ordered "A Promised Land" ahead of Tuesday's release date.
Barnes & Noble CEO James Daunt told Publishers Weekly earlier in the year, "This will be a book of rare consequence. That it will sell as no other book has done since July 21, 2007" — when "Harry Potter and the Deathly Hallows" came out — "is immensely cheering to booksellers."
One bookstore in Washington, D.C. even opened at midnight Tuesday morning to sell copies of "A Promised Land."
Booksellers expect that the memoir will remain a top seller throughout the holiday season.