This book is about the Willem C. Vis International Commercial Arbitration Moot. The Vis Moot is...well...hmmm.... That is just the problem. The Moot is an extraordinary phenomenon that cannot be summed up in a few lines, even by way of introduction. Hence, this book. This remarkable and diverse Guidebook is written by Moot Alumni Association members and others - all participants at the Moot. It describes the full range of the extraordinary activities that take place in Vindobona (the ancient Latin name for the great Central European city that we have come to know as Vienna) each year during the week before Easter. You may be thinking of organizing a team and persuading your law school to enter the competition, or you may be a new participant who wants to know all there is to know in order to overcome the jitters of traveling a long way to compete for the first time in a large competition with people from all around the world. You may be a former mootie who is thinking of returning as an arbitrator and you wish to explain to others why this is something that you just have to do, or you may be a veteran participant of many years who simply wants to be reminded of the magic of that special week you spend each year in Vienna. This book is for all of you.