Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Unbelievably poor

The book is an absolute mess! The explanations are vague and unfinished. Codes wont execute easily and lots of confusion will be there to run a simple program. Most of the time you need to change a setting, add a refrence or be fully aware of the naming. You end up down-loading the auther's code to know what is happening. Very difficult to follow if you dont have any background in programming. I have read 14 chapter and I have no confidence in writing even a simple program. More important chapters are poorer than the others. OOP and XML chapters are good examples. very disappointed specially because I have to go and buy another book and start over. I wonder if its true that this is the fifth edition of this book.