He's also a reasonably active participant in r/emacs which is great. I'm already pretty proficient in Emacs, and Emacs already comes with pretty solid documenta

He's also a reasonably active participant in r/emacs which is great. I'm already pretty proficient in Emacs, and Emacs already comes with pretty solid documentation, but I bought his book "Mastering Emacs" anyway because I'm a fan of his writing and blog posts.