Photographer Ian Mckell spent the last ten years taking pictures of nomadic people (often referred to as gypsies or travellers too). Mckell amazingly tracked down nomadic families that still travel in horse-drawn wagons, and took the most beautiful, thought provoking photos of them.
Read about nomadic tribes here, and if you think that is the eternal Kate Moss on the right, you are totally right(!). You really have to see this interview on her 20-year old career.
Big thanks to Black Eiffel for this wonderful recommendation.