sorry didn't see your comment before posting it ;-) ahh regardless it is a good source getting into some nice details. I didn't know the family of angles before reading this one. And got introduced to photographing glass.
It was the first time I'd heard of the family of angles too. Which is amazing, because once I knew what it was it sure solved a lot of reflection/glare problems I ran into. It seems like something that should have been covered in my education! I learned more from this book than all my college lighting classes.