On: How to write more clearly, think more clearly, and...

[hammock]

>Key takeaways: 1. One of the best ways to improve your writing is to learn how to cut out words that are not necessary

I believe you meant, "1. Cut out unnecessary words."

;)

[carapace → hammock]

"Omit needless words."

( Strunk and White, 1918 )

[mlyle → hammock]

> > Key takeaways: 1. One of the best ways to improve your writing is to learn how to cut out words that are not necessary

I think it's funny the summarized version is that statement. Because, in the presentation, they progressively cut down that exact statement to arrive at:

"To improve your writing, cut out unnecessary words."

> I believe you meant, "1. Cut out unnecessary words."

I think your version cuts out a little too much. It loses the why and becomes an unexplained imperative.