Does "twenty-word" have any other special meaning?

[Angie8]

I'm reading a book and don't understand what the author means by "twenty-word master-class" in the last sentence of the paragraph shown below. Does "twenty-word" have any other special meaning in English world? Or it just simply means "20 words"?

"The American writer and graphic designer Nancy Duarte worked with Al Gore on his storytelling technique in the movie An Inconvenient Truth (2006). Duarte calls rhetorical tricks like Campbell’s jokes a STAR moment, ‘Something They Always Remember’, and when I talked to members of the audience afterwards, they certainly did remember Campbell’s anecdote about being ‘evil’. It was a twenty-word master-class in communications."

[probus]

Twenty-word has no special meaning. The author's claim is that although Campbell's remarks were only about twenty words long, they amounted to a master-class in communications.

I suppose you were puzzled by this claim because of its extreme hyperbole, its truly enormous implausibility.

[Angie8]

Twenty-word has no special meaning. The author's claim is that although Campbell's remarks were only about twenty words long, they amounted to a master-class in communications.

I suppose you were puzzled by this claim because of its extreme hyperbole, its truly enormous implausibility.

Thank you again!

[Rover_KE]

Your thanks are appreciated, Angie, but you don't need to send them in a separate post or quote our replies back to us.

We are all happy to accept a simple click on the Like button as your acknowledgement of our help.

Rover