This book and the course that goes with it are designed to provide the key to this knowledge,so that you can talk confidently about a wide range of different wines.The key to understanding wines is to make the acquaintance of the most common grape varieties,Chardonnay,Cabernet Sauvignon and so on.Once you understand how they taste and how they are shaped by the different places they are grown,you are well on the way to understanding what wine is all about.