How is coffee produced? How much is too much? What's the biggest coffee-drinking nation? We take a look at all matters 'coffee' and discover how it affects the brain. We also look at how the most expensive coffee in the world is produced. If you don't already know you might not believe it! This presentation is aimed at adults, although there is nothing unsuitable for children. It's just unlikely they will understand the lure of coffee! This free lesson - the presentation, the teacher's crib and the class notes - can be downloaded at the foot of the page.