This is a very good study of the book of Galatians, but it is quite technical throughout (Greek on just about every page) so the casual reader might have a hard time with parts of it.
Nevertheless, Murphy-O'Connor does an excellent job of highlighting 7 or 8 key verses in Galations, and covers topics like the Apostle Paul's time in Arabia, his Christology, and who were the actual recipients of the book of Galatians.
I found Chapter 5, NATIONALISM AND CHURCH POLICY to be one of the best in the entire book.
The author says in the preface that he dates the book of Galatians much earlier than most scholars (53 AD), but in reality most scholars date the book close to that date. The Jerusalem council was held in 49 AD, and most biblical scholars feel the book was written by Paul shortly after that.
Not an exhaustive Bible study but an excellent one.