Just a quick one to share a great blog I recently stumbled over called ‘The Strobist’. It is one of the best sources of information on off camera lighting anywhere and it has proven invaluable to me. The site is has a section called “Lighting 101” which breaks down the entire process of lighting a scene as well as dozens of case studies showing the different techniques used.
On a related note if you are interested in off camera lighting check out “The Hot Shoe Diaries” by Joe McNally. Written by a photographer with over 30 years experience including shoots with NatGeo, Time and Life. A fantastic read and very helpful