recommended books on photography
Gaining knowledge and experience is a never-ending curve. The following books are good ways to delve further into the subject of lighting, as well as some other related photography topics, including wedding photography.
There is also this list of the best photography books on my bookshelf.
video tutorials to help you with flash photography
If you like learning by seeing best, then these video tutorials will help you with understanding flash photography techniques and concepts. While not quite hands-on, this is as close as we can get to personal instruction. Check them these and other video tutorials and online photography workshops.