I have five books in print covering motorcycling, overland travel and motorcycle travel.
The cheapest place to buy them new in paperback is either:
• Discounted directly off me at a show or event (usually UK only)
• From Book Depository with discounts and free delivery worldwide
• For AMH7 in the UK only, try ebay – often less than amazon.uk
• In the case of Desert Travels and The Street Riding Years – these are also on amazon kindle from £2.39