This is an easy to understand translation of the documents of the Second Vatican Council. Flannary's translation is quite good compared with other translations of the documents. These documents are a good place to start if someone is trying to understand what the Catholic Church is about and what its proper role in the world is.
Vatican II has gotten a bad rap. "The spirit of Vatican II" has been used as an excuse for liturgical abuses, offenses against canon law, etc. Yet Vatican II is being misquoted, misinterpreted! Every faithful Catholic owes it to himself to know, first hand, what the council REALLY brought forth. This book will inspire you, impress you, and teach you.