For his new photo book Homo Mobilis, photographer Martin Roemers traveled the world armed with a large white backdrop, a camera, and one simple question: "Would you pose with your vehicle for me?" The result is an eye-opening collection of images that raises pressing questions about our current global society. "What about the environmental impact of our addiction to oil and engines?" but also: "Does your choice of vehicle express something about your identity?" At the same time, Roemers' imag...