With more than a million books in print, David D. Busch is the world's #1 selling digital camera guide author, and the originator of popular digital photography series like David Busch's Pro Secrets and David Busch's Quick Snap Guides. He has written dozens of hugely successful guidebooks and compact guides for Canon digital SLR models, and several dozen additional user guides for other camera models, as well as many popular books devoted to dSLRs, including Mastering Digital SLR Photography, Third Edition and Digital SLR Pro Secrets. As a roving photojournalist for more than 20 years, he illustrated his books, magazine articles, and newspaper reports with award-winning images. He's operated his own commercial studio, suffocated in formal dress while shooting weddings-for-hire, and shot sports for a daily newspaper and upstate New York college. His photos and articles have been published in Popular Photography, Rangefinder, Professional Photographer, and hundreds of other publications. He's also reviewed dozens of digital cameras for CNet and other Ziff-Davis publications. His advice has been featured on National Public Radio's All Tech Considered.