David M. Hogue, PhD, is an applied psychologist and interaction/UX designer. He has been studying user behavior and designing interfaces since 1997, and combines his skills as a designer and psychologist to bring deeper insight into users' behaviors and motivations when interacting with digital devices and interfaces. Dave teaches information design, interaction design, social media, and mobile design courses at San Francisco State University, and is Vice President of Experience Design at Fluid, the award-winning digital services agency. He has published articles and tutorials on design methods and tools and regularly speaks at seminars and conferences. Clients include The North Face, Reebok, Warner Bros., Charles Schwab, Wells Fargo, and Sur La Table. Dave lives in San Francisco and enjoys writing, cooking, motorcycles, and travel. Visit www.idux.com for links to his Twitter feed, blog, and other online activities.