As well as describing how 4X4 systems work, he gives useful off-road techniques including how to negotiate ridges, ditches, slopes, ice, water and sand. He talks readers through recovering a stuck vehicle and how to put a 4X4 expedition together.
It’s packed with detail and made me want to take the Discovery off-road again, to see what else it could do. It’s £28.50 from Desert Winds Publishing.