Peachpit and Pearson Technology Group today announced the results of research based on Nielsen Bookscan data for the calendar year 2004 indicating Scott Kelby is the number one, top-selling computer book author in the US, exceeding Microsoft Press, Andy Rathbone, and David Pogue in Bookscan units and dollars sold in 2004. Kelby is widely recognized as the world’s best-selling Photoshop how-to book author, a digital imaging guru, and President of the National Association of Photoshop Professionals.