I loved your course from a few years ago - "Hit the Front Page of Hacker News".
The biggest takeaways from that course were to write for beginners, and assume no prior knowledge/context.
I've often been fascinated by articles featured on HN, that were totally out of my field, but somehow didn't make me feel stupid.
A few concepts from your course gave me some very refreshing "aha!" moments. Since then I'm almost never staring at a blank page.
Thanks so much, and looking forward to the book!