Instruct: Classify the given Amazon review as either positive or negative.
Query: Poorly Written

Much of the content in this book is covered multiple times. I found the writting style to be very difficult to follow without high concentration on the text (more difficult than other technical books). It seems as though the technical concepts are not completely understood by the author as their explainations in this book are as dry as RFC's. I chose this book because I have used Exam Preps in the past and had good luck with them, but this one is bad... very bad.