I have a couple of Haynes caravanning books that were written by him. His contribution was beneficial to me and many other caravan novices too when they first started out. RIP John Wickersham.
So sad to hear, likewise enjoyed his clear explanations that were non-patronizing for newbies and experts alike, as well as his gentle humour on the caravan channel. Yep also got an old Haynes manual.
As well is two words!
How does a sage know everything about everything? or does he? or does he just think he does?
Remember, if you buy something you bought it, not brought it.