When it comes to the cheeses we love most, we generally think of farmers, cheesemakers and, well, cows. But there is another person, perhaps the most important in the equation: cheesemongers. They are the experts that help us determine what cheese we are looking for depending on our mood, food and drink pairings, or event. There is art, science and wildly precise skill to what they do. The Cheesemonger Invitational finds the best of the best.