Having learned Mandarin, and travelling alone by foot, bicycle and train, Colin Thubron sets off on a 10,000 mile journey from Beijing to Tibet, starting from a tropical paradise near the Burmese border to the windswept wastes of the Gobi desert and the far end of the Great Wall. What Thubron reveals is an astonishing diversity, a land whose still unmeasured resources strain to meet an awesome demand, and an ancient people still reeling from the devastation of the Cultural Revolution.