Dave lectures internationally on lighting, digital photography, and Adobe Photoshop. He is also a published author, columnist, beta tester, and creator of training DVDs on Photoshop and photographic lighting for www.PhotoshopCafe and www.Software-Cinema in Los Angeles. Dave also authors Dave On Demand, a photo blog with free and subscription-based lighting video tutorials and articles. He has written two books on lighting and digital photography, and is a regular columnist for Professional Imagemaker in the UK and Studio Mag in Belgium. He has also written numerous magazine articles in North America, Europe, Russia and Asia. Aside from education, Dave works as a commercial advertising photographer creating images for McDonalds Foods, Motorola, Toyo Tires, Tri-Star Pictures, Warner Brothers, Chevron, Cuervo Tequila, J&B Scotch, Hong Kong Bank, Tsing Tao Brewery of China, and No Fear Sports Gear, through his business Montizambert Photography Inc.