Comment by OskarS

On my off hours, I’ve been working through volumes 4A and 4B. They are really wonderful, I highly recommend them. They’re not practical for the vast majority of programmers, but the way he designs and writes about algorithms is remarkable, truly unique. The Dancing Links implementation in 4B in particular (updated significantly from his famous paper) is like a work of art, it’s such an intricate and gorgeous data structure, and blazing fast as well. Man still got it, in his 80s.