Is Jeremy Silman the greatest chess instructor OF ALL TIME?!

I thought silman was ok when I was a beginner but now I have a bit more knowledge of the game I think his books are terrible.

I think Mr. Dan Heisman is a very good teacher for beginners/intermediate and Mark Dvoretsky for improuved players. However I appreciate also the Silmans's endgame course.

No one is the greatest chess instructor of all time.
That's some capital marketing bullshit people make up to sell themselves.
I think.
"Jeremy Silman's HOW TO REASSESS YOUR CHESS is an example of a good book which explains many important ideas in clear terms." - GM John Nunn (2006)

The best time to use his approach to finding imbalances is while your opponent is using the clock or when you get to a position (after your opening knowledge runs out, your opponent makes an unexpected move, or when 2 or more plans are available) that is unclear.
True, once you reach a high level his books are worth less than if you're a beginner or intermediate player, but he is targeting the masses of chess players who may buy his books rather than the hundreds of experts or masters.