The problem with things like this is you assume that people will read the same books as you on the given subject. Say you want to talk about the war and militarism and suggest reading 'The Things They Carried' and 'The Forever War', but I read 'Starship Troopers' and 'Storm of Steel'.

Yeah we both read books about the same problem but we're probably going to come away with different opinions. Or we could both read all four of those books, and then who knows if I'll agree with you or not?