Since not everyone has a Facebook account, here's another recent video addition to youtube: an excerpt from the 2007 Photoshop World Keynote featuring the Histograms. Here's the infomercial part where you can order their greatest hits.
Author of Photoshop Finishing Touches, Photoshop CS2 Help Desk Book, co-Author of Illustrator CS2 Killer Tips. Speaker, Trainer, writer for Photoshop User magazine. Featured on a number of training DVDs and one of the "Photoshop Guys" on Photoshop User TV. Adobe Certified Expert and Instructor, Photoshop CS4. Passionate about photography! 2009 Inductee into Photoshop Hall of Fame.