Donald Hugh McClelland, Jr., known as Deke McClelland (born 1962), is an American author and expert in Adobe products, most notably Photoshop, but also Illustrator, InDesign and Photoshop Elements.
He has hosted over 80 video tutorials, totaling upwards of 2000 hours for different Adobe Applications (mainly Photoshop, InDesign and Illustrator)
Lynda.com has a full list of video tutorials hosted by McClelland.
McClelland lives in Boulder, Colorado, with his two sons.