Each time Chris and Tim Whitney show their photographic work in public, they have to field a common question: "So who did this one?"

In 1988, Raymond Mathis was toiling away as a professional farrier, traveling from farm to farm to trim and balance the hooves of horses and place shoes on their feet. Little did he know that the tools in the back of his pickup truck would inspire another career altogether.

Waking up each morning, Tony LaSalle gathers his thoughts and his tools, preparing for a daily ritual that’s become as ingrained as brushing his teeth or exercising at the gym.

For years, Alan Fetterman traveled the world, landing everywhere from Europe to South America.