I have to start out by saying that I am a Vermes enthusiast. Although I used a multitude of sources in my own novel, The Testament Of Marcellus, I returned to Vermes consistently as a touchstone for my own portraits of Jesus, Pilate, Herod and other figures of the New Testament.
He has written powerfully and insightfully about the content of Jesus' teaching, and those books, especially "Jesus The Jew" and "The Authentic Gospel Of Jesus," are perhaps his most important work.
Here he discusses areas of the New Testament which do not come directly from Jesus himself, but which are narratives concerning his birth, death and resurrection, added to the body of his teaching in order to flesh out "the story of Jesus."
Vermes' great subtlety as a writer and his skill as an analyst of 1st Century documents can often go over the heads of readers. We have to recall that this was a man who studied the Dead Sea Scrolls for 30 years, and produced a magisterial translation of them into English (I believe it is still the only complete translation in English).
Fundamentalists are unlikely to be impressed by this scholarly book. It is not so much that Vermes debunks the legends, as that he tries to put them in context, explain the anomalies (Gospel accounts are often contradictory) and clear the way for us to make a decision about what really happened.
Very highly recommended to all lay people who are interested in this subject.