text: The author is an owner and operator of a tutoring center. He is not an expert in auto mechanics.  As he points out on the back cover the pictures and the concepts were for teenage boys and the accompanying graphics are of poor quality.
  
  If you actually want to learn anything substative of autos this is a poor poor choice. You are better of visiting the automotive section of www.howstuffworks.com or some similar website to learn more with better graphics and for free.
  
  I bought this book long time ago and finally had the time to look at it and I regret it
  