I've been reading through this book, got to say it really is very concise. One thing is for sure after reading this is that there are lots and lots of things to consider when starting a brewing business.
I think if you still want to start a micro brewery after reading this you must be very passionate about wanting to do it.
The book goes into costs and tax right through to what's involved in getting rid of the spent grains.
Recommended read, but don't think its going to tell you how to brew, lots of other good books and this forum for that.