Kelby Training Wedding Photography is a thorough course in using flash photography for your gigs. Broken down into two discs, you'll first listen to disc one that explains how straight-on flash yields a rather boring image when it comes to wedding shooting. The trick is to use the flash at an angle to get some modeling that is much more flattering to your subjects.
Disc two is hard core instruction on flash techniques that will make your photos different from everyone else's and get you those referrals that make you a full-time photographer. The lessons are presented in an easy-to-understand manner.