wow! John Matthews Book £45-£55
I;m sure its a lovely book but it sure has a lovely price tag! That was on Amazon though, so maybe cheaper elsewhere?
I use Storey's guide to raising dairy goats as a starting point for most things then google from there
It is an academic textbook, so not discounted by Amazon. It is written for vets and vet students - so if your current vet is keen to learn more about goats that would be a great starting point for him/her. HOWEVER - I would not be without mine I have to say. (But I am scientist by training, so the text is ok for me)
Slightly less academic (but still quite good) is Peter Dunn "The goatkeeper's veterinary handbook". Probably cheaper too.
Storey's is ok for goats, but really a bit on the American side for terms (as in doe, buck etc etc) and also in measurement terms (but their homemade electrolyte solution has saved at least one of my goats).