I read this some time ago and found it an excellent summary of some basics (which is not to say, simple things for beginners, but actual basics) with some excellent points for further exploration.
The discussion about it at the time on Hacker News, unsurprisingly, included a number of people who insisted they would hire the lesser candidate because the other one was too smart. Which I interpreted to mean "I didn't know any of this and I'm angry that other people do" :)
Nice find indeed.
I'd augment Moschop's link, if I may, with this: http://www.drpaulcarter.com/pcasm/
It's a free book about Assembly and how it interacts with C and C++ (some things from the Deep C slideshow will be covered in more detail.)