Western horses, a large animal vet, a cute farrier. . .you will not be able to put these books down. Crum's books are for you if you cringe when you're happily reading along in a horse book and a detail is wrong. She gets it all right.
Here is her own site: www.lauracrum.com
And the blog she shares with other writers: http://equestrianink.blogspot.com/