Instruct: Classify a review as either positive or negative.
Query: Review of "The Vendetta"

An excellent book. Purvis's son gives us his father's history with an unblinking eye,and manages to give the reader insight into Purvis the man:a pariah who is forced to leave the F.B.I. by a vindictive Hoover,yet who still manages to be a hero.Historically Alston Purvis is right on the mark and pulls no punches. I only wish that other authors would have been as responsible when writing about his famous father. This book is not hero-worship,but is stunning in it's grasp of history,and hard hitting in it's facts.This book should not be left off the shelf of anyone interested in the F.B.I.'s early days and the desperados Purvis and his men hunted down. It is really something new!