Still a wonderful resource, along with You Might Not Need jQuery. Fun fact: I interviewed with you for a front-end developer job in 2013(?) when you worked at a different company in Cambridge. Let's just say: I didn't get the job. You asked me about if I was familiar with X in CSS, and I said something like "well, I've never implemented it, but I've read about it." Your response stuck with me to this day, and I'll paraphrase: "I don't care if you've read about something 'til your face turned blue, you'll never actually learn something until you do it." It stung at the time, but it was the best kick in the ass I've ever received. I took your advice, and am now gainfully employed as a senior frontend developer. Thanks.
Bought the book a few weeks ago. Have not finished yet, but it's an excellent read thus far. I knew it was a must-read after hearing Reg's interview on the Javascript Jabber podcast.