Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: Sketchy at best

While this book is well organized in its presentation of material, the information itself is quite brief and sketchy. In addition there is really nothing new here that has not been rephrased time and time again in every beginner's book over the past two decades.If you're looking for yet another beginner's book to add to your library, then here is one more for your collection. But if you're looking for something new, you'll need to keep looking.