Instruct: Classify the given review into positive or negative sentiment.
Query: Poorest prepared book I've ever seen

This book's greatest asset is its errors. They are so pervasive that the reader quickly learns not to accept anything read in the book and to go to the compiler to verify everything. This helps one become very well versed in the Java 2 language, but it quickly becomes tedious and frustrating. It leaves me wondering if Syngress/Osborne is at all familiar with the concept of proofreading.It was well conceived but very poorly done. I strongly suggest that your money would be better spent on ANY other book for Sun Certified Java Programmer preparation.