Tying in with the latest BBC TV series from the motorcycling chefs, this new book sees them tour Asia to find the best authentic recipes. The boys travel through China, Thailand, Korea and Japan, journeying the spice plantations, cardamom hills, buzzing street stalls, rice paddies and abundant coastlines of the great eastern continent. The sales of Hairy Bikers books have reached more than 2.4 million, and they are Orion's biggest non-fiction brand.