Pamela Sheldon Johns teaches from her Agriturismo in Tuscany
She's a best selling cookbook author and her courses are fantastic.
Judy Witt runs day and week long cooking courses from a small town just south of Florence:
Both are very hands on, and both Judy and Pamela are fantastic fun people. I can recommend both 100%.
What's important to you in your cookery course? What part of Italy? What is your price range? Are you looking for cooking classes only or for a package of cooking classes + accommodation and perhaps + excursions? What time of year? Any particular kind of cuisine or ingredients you want to work with?
If you can tell us more about what you're looking for, I can make suggestions. There are hundreds of cookery courses in Italy.