A farrier is a person whose job involves taking care of horses' hooves and shoeing them if they need protection. Being a farrier was far more common hundreds of years ago, when horses were a major form of transportation.
If you love working with horses, you might consider being a farrier. The job involves a lot of knowledge of and care for the animals' feet, with additional skills in working with metal, bending and shaping it to fit a horse's hoof. In fact, the term farrier demonstrates how closely related the profession is to blacksmithing, or making things from metal: farrier comes from the Latin root ferrum, or "iron."