I'd add the book "Thinking Forth", which I just read again recently:

http://thinking-forth.sourceforge.net/

The ideas present - which are much more craftsmanlike than an academic paper - are easy to absorb by skimming, and they're still relevant even after 20 years of research/fashion trends in programming.

Plus Forth itself is, in a lot of ways, the living embodiment of the YAGNI principle, which can make it look uncomfortably-to-incomprehensibly spartan to outsiders.