Here is a review left by a customer on a product. Would you say he was satisfied or dissatisfied?
Title: completely useless
Review: one of the most basic problem: what level is book for? if for beginner, it doesn't explain so much terms, like "price-to-ratio", "price-to -book", etc, it neither give a definition or how to compute it in reality; if for professional, it lacks of strick statistic annalysis, the result basicly comes from the author's subjective judgement. Besides, he only mentioned something well-known fact, like: "investment in big company is a safe way..", why a reader needs this kind of even-baby-known fact? I am regret that I cannot refund this book, this is probably the only book I think I should refund after I bought so many books from online store.
