Great manual.  Helped me rebuild the AC system in my truck when I did not really know what I was doing.  This manual is not fully comprehensive.  It assumes you have some knowledge of how to work on AC systems, so I had to go looking for other sources to make sure I understood what the book was talking about.  If you are a complete noob, be brepared you might need to hit the internet or other resources to get all the info you need.