The CWAP book is a good book for wifi analysis. It's not necessarily step-by-step instructions, but it explains all the frame types that you'll see in your capture and how to analyze them.
https://www.cwnp.com/certifications/cwap
Savvius Omnipeek is very good at packet analysis (and captures!) and is capable of pointing out possible issues. It's not going to do all the work for you, but it can be helpful. I believe AirMagnet Wifi Analyzer pro is also capable of providing insight into packet captures; I don't have personal experience with it. Both products will cost you a couple thousand US $.