Where to buy my books cheap

I have five books on motorcycling, overland and motorcycle travel, plus a camel trekking e-book. The cheapest way to buy my paperbacks new is either:

Directly from me. Post-free, UK only.
• At a show or event I’m attending (usually UK only)
• From Amazon. See links below
 Desert Travels and Street Riding Years are also on Amazon kindle.

Paperbacks
Adventure Motorcycling Handbook 8 
The Street Riding Years
Morocco Overland 3
Overlanders’ Handbook 2
Ebooks
The Street Riding Years Amazon ebook
Desert Travels Amazon ebook
Sahara Trekking Amazon ebook