Former FBI director James Comey's debut book, A Higher Loyalty, has sold more than 600,000 copies since its publication last week, Flatiron Books president Bob Miller and publisher Amy Einhorn have reported. According to the publisher, the book is currently the #1 bestselling book in all formats, and Flatiron reportedly has more than a million copies of the book in print.

The book, which, the publisher said, "explores what good, ethical leadership looks like and how it drives sound decisions," is the second Trump-related title published by a Macmillan division to generate huge sales. Michael Wolff's Fire and Fury, published by Henry Holt, dominated the January bestseller list and has sold almost 1 million print copies, according to NPD BookScan. Political books have dominated the nonfiction charts this year overall.

BooksScan reported this morning that Loyalty sold almost 360,000 copies in its first week on sale; Fire and Fury sold 191,000 copies in week one and another 324,000 copies in its second week.

Comey is represented by Matt Latimer and Keith Urbahn of Javelin, two new kids on the agency block who, as PW previously reported, have been scooping up rights to political memoirs over the past couple of years.

This story has been updated to include BookScan sales numbers.