Instruct: Classify a given Amazon review as either positive or negative.
Query: A great read for US history buffs

Most writers of history - even the commercially successful ones - make the same mistake. They write books that are mere chronological recitations of fact and minutiae, with little regard for narrative. But Charles Slack deftly avoids this trap. His subject is seemingly arcane - the discovery of the vulcanization process for rubber. But, perhaps because he is a former journalist rather than an academic, Slack never loses his grip on the storyline that makes the life of Charles Goodyear so compelling. Goodyear, we come to realize, is a true American hero, who worked doggedly to solve one of the greatest riddles of the industrial age, triumphing in the end over charlatans who fought to deprive him of the money and recognition he deserved. This is a great read about an overlooked chapter in US history.