Firstly, there is over 40 years of research in the book so it does NOT disappoint me.
Make ME money? That was never the intention. Any profits were to go to the UK Wolf Conservation Trust which does a LOT of educational work including with schools and The National Fox Welfare Society who do things like give advice on sick or injured foxes and FREE mange treatment.
I am only disappointed (almost ashamed really) in that I have been unable to contribute to these two organisations.
Up-dated 2013 edition includes a section on sarcoptic mange in foxes and treatment plus a list of wildlife sanctuaries and rescue centres in the UK.