Awesome book, I actually bought a hardcopy for $150ish dollars a couple years ago because I wanted the tactile feel to go with the brilliant words.

For electronic consumption there's an excellent project on github that was mentioned here on hacker news earlier in the year / last year. You can find that here https://github.com/jagregory/abrash-black-book/releases and it is the contents of the extreme edition formatted for modern e-readers.