Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Disappointing.........and here's why

McConville's study is a survey of maritime economics, presenting a general survey of macroeconomics as it applies specifically to the merchant trade. It is nicely organized and put together, but suffers from one serious fault: THE NEED FOR AN EDITOR!! The book is rife with spelling errors and grammatical mistakes or all sorts. There are entire paragraphs that are literally incomprehensible because the publisher did not comb the text carefully for faults and messy construction. If you want a superb study of maritime economics, get a copy of Shopford's classic survey (now in its third edition.......).