President Bush's memoir, Decision Points, is still the #1 non-fiction book in the nation for the reporting week ending 12/19/10. It tops both The New York Times and Amazon.com non-fiction books lists for the fourth week in a row. In fact, it's still #1 overall on Amazon.
Just for contrast, Sarah Palin's book, America By Heart, opened at #2 on the NYT list last week and has fallen to #5 this week. It is #41 overall on Amazon.
I have been unable to find recent sales figures for Decision Points, but Random House had an initial print run of 1.5 million copies and raised that to 1.85 million within a week of the book's release. Now, four weeks into it's release and with Christmas buying season in full swing, the book is likely to go over 2 million in sales fairly soon. In this economy, that's amazing.
Just wanted to add for further contrast that Bill Clinton’s memoir, My Life, has sold about 2.2 million copies since its 2004 publication. GWB’s book will hit 2 million in months, not the six years it’s taken Bubba’s book. :)