Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Very Good Book

I have read the book and I am totally satisfied with it.The book covers all topics which you need to pass the test. I think the questions in the book are not to hard...they meet exactly the question standart from the test. So as test preparation this book is perfect. But I also have to say: if you are new to Oracle and SQL this book will not go deep enough into the topics. You will need additional books.