Instruct: Classify Amazon reviews into positive or negative sentiment
Query: a landmark work?

The only thing lankmark about Sulloway's second big book is that it's been labeled "landmark" by everybody, and possibly by the author himself, behind his false modesty and intellectual cowardice. It is not surprising that all the big names are praising this book; and as one of the customer reviews said: Sulloway is shooting some Marxist and Freudian cows. In his dreams, maybe. I only wish Sulloway would learn to do some honest history one day, instead of piling documents upon documents, and "evidence" upon "evidence" and call that science. Well, science this is not. Unfortunately, the topic is too complex for even 200 pages of notes. In reading this book one ought to think about what Sulloway ignores and waves away... If one has nothing better to do with his time, one could conceivably write a book to prove that Americans only drink beer