There is a good book on this theme http://aosabook.org/en/index.html http://aosabook.org/en/index.html , where the authors actually go deep into the design & a

There is a good book on this theme http://aosabook.org/en/index.html http://aosabook.org/en/index.html , where the authors actually go deep into the design & architecture of selected well designed open source projects e.g. llvm, git, freeswitch, etc. Highly recommended !