The Smart Cookies are three girls who are best friends and love to go on adventures together. They are curious, funny first-graders and their names are Maya, Lulu and Piper. When The Smart Cookies go out in the world they have a habit of meeting fascinating women with interesting jobs. In this book they meet a woman who has her own business putting on birthday parties ("Wanda the Birthday Fairy"). She explains to the Smart Cookies what an entrepreneur is, and the girls dream up a business they want to start. Then they make a business plan and get cracking. They launch the Dizzy Disco, for kids only. This book teaches girls how to start a business and that if they dream it, they can do it!