The whole method is in their book, but you can get the basics from their websites:
I personally love the method…you melt confectionary coating, color with candy colors, and make shapes/designs etc to go on your cakes. The chocolate designs hold up well, and can be made far in advance. I’ve done several bigger pieces too and never had a problem with breaking etc. Once piece of advice is find a brand of confectionary coating that melts well. I started out using Wilton’s Candy Melts, and never liked the way they melted. They were always thick, never smooth. I switched to Merckens and they worked so much better.