Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Comlpete let down !!!

I ordered the book for the purpose of obtaining infomation concerning the build-up and operation of supercharged engines. I was very disappointed to find pictures of cars cover to cover. There was two pages of supercharging theory and the rest all pictures.The title of the book is very misleading. There is not one thing comprehensive about this book peroid.I gave the book one star and do not recommend anyone to purchase unless it,s for your first grade son that likes picture books. To some it up I felt like I was ripped off!