Instruct: Classify Amazon reviews into positive or negative sentiment
Query: a good first effort

Most of this book is Yardley's reflections on Exley: his work and what his life meant. It is not much in the way of hard biography. I get the feeling that Yardley, though he admired and was fascinated by Exley, was not up to the task of a serious biography.In the preface Yardley demurs that this is not possible because Exley left so few traces of himself behind.Ha! An unconvincing excuse. There be other authors who have left a lot less, and that didn't stop hordes of biographers.I think Yardley found it easier to surmise than actually do the legwork. However, 5 stars because the book is so exquisitely written.Do yourself a favor and skip p. 29.