Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Not the best one ...

I bought this book reading the good reviews and with hope that I will get the needed knowledge about Spring framework. Although in some modules (IOC, AOP) the book is quite good and explains well the concepts, it lacks the concrete examples. The method used to explain the most complicated concepts makes them hard to understand without any other source of information.I found a lot of unnecessary information while the book lacks the necessary explanations sometimes.