Amazon Author Rank is based on the sales of all of an author's books on Amazon.com and is updated hourly. Explore these pages to find the best selling authors in your favorite genres. Been thinking about reading something a bit different or need some help selecting the perfect gift? Dive in and discover a host of popular authors who are delighting other readers. Make your reading choices with confidence thanks to Amazon Author Rank. Authors can find their Amazon Author Rank in Author Central.