Love this ! But I disagree to the thought that youngsters don't use emacs. It is amazing to actually see a number of people who are very young learning about emacs and loving it. The community behind emacs was always niche but it is amazing that in every generation there are people who resonate with its ethos and mental models.

This series of books has been a great resource and I have been reading them for some time.

Thanks to the authors and editors for creating such an awesome resource. A must read for engineers who want to learn.

Some of my favorites have been http://aosabook.org/en/nginx.html http://aosabook.org/en/sqlalchemy.html http://aosabook.org/en/distsys.html from the first volume.

http://aosabook.org/en/graphite.html http://aosabook.org/en/llvm.html http://aosabook.org/en/asterisk.html from the second volume.

The new volume on Performance is also very good with the http://aosabook.org/en/posa/high-performance-networking-in-c... and http://aosabook.org/en/posa/secrets-of-mobile-network-perfor...

being my favorites.