It is called cake decorating.

There are great websites out there where you can find the basics on decorating. Better Homes and Gardens and Home & Garden Television are two that are highly respected. I recommend that you look into www.bhg.com/decorating/lessons/basics/ and www.hgtv.com/decorating-basics/index.html.

The most frequently bought cake decorating kit is the Wilton twenty three or fifty three piece cupcake and cake decorating kit. The Wilton cake decorating kits are the biggest selection of cake decorating needs.

Cake decorating is more a part of baking than a craft. There is no genre of crafts that cake decorating would be classified into. It is more of a genre of baking, which may fall under decorating. Cake decorating may be more of an art than a craft.

The craft stores like michael's do not offer cake decorating lessons. They do however have some books on cake decorating.