This is a set of a service manual and a wiring diagram manual used by Ford technicians. You will receive 2 manuals in the set: The service manual and the wiring diagram book. It has way more detail and information than a Chilton's or Haynes manual. It is used, but in good condition. All the pages are present and they are easily readable (see a representative page in the photos). This was written by the Ford Technical Publication Department. The manual is 4 pounds and almost 2 inches thick!! See photos for additional details.