Before You Die: Dogon Country by Richard Newton

Even if you don't believe the theory put forward in a best selling book that the Dogon are linked to aliens from Sirius, the people living in the villages at the foot of the arid Bandiagara Escarpment are unique. Their architecture, their dances, their five-day week, all set them apart. And as for their language - just saying 'hello' requires a formal exchange that takes the best part of five minutes. It's another world. Richard Newton.