Comment by skywhopper

Yes! Julia is fantastic at explaining concepts, and creating ways to learn about them. She produces a great series of “zines” summarizing a bunch of technical topics, her blog archives are really fascinating, and she’s created really useful tools like Mess With DNS (https://messwithdns.net) which gives you your own DNS subdomain and the means to update records so you can try things out in an easy, harmless way.