I just read a really awesome book that I would recommend to everyone called The Soul Of A Horse by Joe Camp. He uses a lot of Monty Roberts training techniques and learned A LOT about horses through it and he did a lot of research on what is best for horses. I'm telling you I learned a ton from this book and one of the most important things I learned is that horses SHOULD NOT wear shoes. It is one of the worst thing for them. Their hooves are made to flex which helps circulate the blood from their legs. When they have shoes the hooves can't flex and it makes their hearts have to work much harder. Which is also why they shouldn't be stalled. They need to move around to keep things working properly. They are much healthier this way and live much longer.
~**`The wind of heaven is that which blows between a horse's ears. `**~