Even though I am a very good writer and I've been writing a lot since I was young, I still open up that blog post and put it in the background anytime I'm writing anything important. It's that good. I use it as my basic template for how to write well. Think about the title “The Day You Became a Better Writer.” It's such a powerful title. He teaches you in one small blog post the importance of surprise, the importance of headlines, the importance of being brief and directed, not using some adjectives and adverbs, using active not the passive voice, etc. This one blog post right there will change your writing style forever if you put your ego down and absorb it properly.