I initially almost didn't get this. When I saw how slender the Infancy Narratives was, I was disappointed. I don't know, I guess I was expecting, given Benedict's other entries in his Jesus series, something along the lines of Raymond Brown's Birth of the Messiah (which, interestingly, Benedict never refers to). But after reading Benedict's treatment (which the Pope calls a small "antechamber" to this Jesus story), I find I can't praise the book enough. It's length (about 130 pages), and it's depth (endless), makes it a perfect Christmas companion.
My previous encounters with Benedict (Ratzinger), have been excellent, but also challenging. This pope deals in deep theology, heavy lumber, but you also sense a first class mind at work. So you soldier on (see his Introduction to Christianity, which is hardly an introduction for the layperson). But with the Infancy Narratives, the reader will find much of that "heaviness" stripped away. It's easily the most pastoral effort I've read from this pope. It's also a book that can be read by all Christians, since Benedict dials back his sense (insistence?) of "Church" (as in Roman Catholic). Here he speaks to believers everywhere.
Benedict starts things off with the questions: Who is Jesus? Where is he from? He then points out that the two questions are "inseparably linked." What follows are close readings, and examinations, of the Gospel accounts found in Matthew and Luke. Matthew's focus in on the the genealogy of Jesus (with great emphasis placed on David, and Abraham). Luke, emphasis is given to Jesus' public ministry. In addition to these approaches, is that Luke's story appears to operate with "inside" information: Mary as a kind of ultimate source for the events in the narratives.
Benedict works his may through both, with all the elements (the Annunciation, Joseph, the angel, Herod, the Magi, massacre of the innocents, etc.) touched on, but with great depth. Benedict is capable of communicating this depth, while at the same time maintaining a light touch. He also treats the narratives as history, knocking down, convincingly (IMHO), those that insist the narratives are myth or fairy tales. Toward the end of the book, Benedict states that the writers of the Gospels believed they were writing concrete history, and without evidence to the contrary, we should believe them. One of the more fascinating parts of this story is Benedict's discussion of the "Star of Bethlehem." Was it a star? Or something else? Whatever it was, it was noted as far away as China and Babylon. Its appearance, according ancient writers beyond Israel, was given great weight. Something was going to happen. How cool is that?
Note: If you get this, I strongly recommend a slow reading. Some here at Goodreads have remarked that the book can be read in an afternoon. This is true, but I think that such an approach robs the book of its lingering beauty.