As the big hat says, look for Ewald Notter. I've taken many classes from him and he is by far the most talented practitioner of the art. He has 2 books, I don't remember the name of the first one, I'm sure it's on his site, but the 2nd one Das Ist Zucker is worth whatever you pay for it.
His classes are very pricy, but you cannot put a price on training such as his. It's like questioning the cost of lessons from Leonardo DaVinci.
He is located in Gaithersburg, MD at Albert Uster Imports. Call up and get a brochure.
I might suggest that if at all possible take a course or watch someone in person. It's not as easy as it may look and it can burn you as well if you don't learn the little techniques that may or may not be shown. If you have any other questions I'd be happy to help.
If this works I'm attaching a picture of my wedding cake from many moons ago that I did with my sugar training from Ewald.