My friend acquired a male Great Pyrenees recently. He's around eight months old now. They live on a large property where they have a herd of goats. They got the dog to be a working LGD, not a pet. He stays outside with the goats. Can anyone recommend some good reading materials for my friend? She doesn't really know anything about dogs, let alone how to raise a working LGD. Their hobby farmers, learning as they go. They've had problems with losing chickens and baby goats in the past which led them to getting the dog though sooner than originally intended.