Last month, I took a cake decorating class at AC Moore. I knew some of the basics, including the shell border and cursive writing, but I wanted to learn a bit more. The Wilton cake decorating classes are really great! For around $30 (less if you sign up during certain promotions) you get 4 classes that are 2 hours each. You also have to buy the supplies, but they tell you exactly what you need and how to use it.