Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Below Average book

It is an ok book for B2B introduction. That is all it is worthwhile reading. Also, some of these information are somewhat outdated. Financial market is very different than electronics market for example. Sure some of the market fundamentals are similar (such as liquidity, and transaction level....), but the nature of the underlying assets is very different. Get an used one or borrow from someone for a quick reading.... I bought it brand new while visiting Hong Kong..