Of all the books I've read in New Testament studies, and they're in the 100s, I can safely say that few books have humbled me as much as this book has. This is for two reasons; first due to its learned effectiveness, but second, and much more so, because this book, more than almost any other, has cemented for me the fact that it is very, very difficult for scholars, if they're truly being honest, to be completely certain of our interpretations of ancient texts.
With remarkable clarity and brevity Zetterholm has effectively set out in this book a thoughtful and well organized synopsis of all Pauline scholarship over the past 40 years. More than its clarity, the book is remarkable for its fairness, as Zetterholm describes extremely divergent views, from his own and from one another, while offering very little critique - his goal is simply to describe, like a good reporter, the state of the field, and to offer a robust analysis of exactly why certain trends in Pauline scholarship have emerged. His analysis in this regard is especially apt and helpful.
Zetterholm describes both the historical circumstances behind interpretive trends, as well as the critique that each trend has of the others. He details the traditional Protestant views on Paul, as well as the so-called "new perspectives" and the radical new perspectives, giving the views of the major proponents and the philosophical foundations that underlie each.
By the end, Zetterholm notes what the reader has come to understand - the picture is muddy, and it's only getting less clear, not more. And yet he offers hope, in demonstrating that new interpretations often serve to refine old ones, and that better interpretations often emerge as a result. This is proven historically, and already seems to be taking shape in Pauline scholarship. If anyone desires to understand the state of Pauline scholarship over the last 40 years, I know of no better primer.