I've seen many posts recommending books specifically on wedding photography. I thought it would be good to have one post to see what others highly recommend since there is so much out there.
I've read a couple myself but those that came recommended have always been invaluable.
"How to win friends and influnce people" Dale Carneigie Confidenceand Power in dealing with people Les Gibblins. Also any Amhurt publications on wedding lighting and posing. As far as wedding DVD are probably a better learning tool.
There are a lot of books - some should be avoided as repressive and stifling others are bold of vision and tremendously exciting. I recommend Saudek as a strong learning point.
Secrets of Location Lighting
Photojournalism, 5th Edition
Skin
Lighting and the Dramatic Portrait
Matters of Light and Depth
Art of RAW Conversion
Light - Science and Magic