title_body: What exactly is a Cicerone? What do they do?
upvoted_answer: Basically, they are experts in beer. They are knowledgeable in everything from the brewing process and the beer styles to properly serving beer and how to pair it with food. Yes, there are certification programs around, such as this one. I'm not sure about training, but it seems like it involves a series of exams, much like actuarial exams or the FE and PE for engineers. craftbeer.com has a great article.