Writing. Clarity, brevity, and expressiveness are all too rare these days, especially in technical writing and presentations. Writing well can greatly improve your thought process and make your message sing.
I'd start by reading Strunk & White, which nicely addresses clarity and brevity, leaving only a source for expressiveness, which is basically storytelling. There I like the writing books by Steven King, Ray Bradbury, and Ursula LeGuin, but many other worthwhile primers of style are (almost) as good.
Then practice writing while critically reading the best works of good writers, carefully observing their techniques, and then stealing them liberally. Ask friends you trust to assess your work and explain what they liked, didn't like, and why.
Thanks for the tips. Any other recommendations to improve clarity in writing and speaking? I’m not a native English speaker and I’ve been looking for ways to improve.
I'd start by reading Strunk & White, which nicely addresses clarity and brevity, leaving only a source for expressiveness, which is basically storytelling. There I like the writing books by Steven King, Ray Bradbury, and Ursula LeGuin, but many other worthwhile primers of style are (almost) as good.
Then practice writing while critically reading the best works of good writers, carefully observing their techniques, and then stealing them liberally. Ask friends you trust to assess your work and explain what they liked, didn't like, and why.