This doesn't address the rest of your comment, but I have a theory about the presence of Vietnam War books on this list. Ken Burns and co. released their multi-

This doesn't address the rest of your comment, but I have a theory about the presence of Vietnam War books on this list. Ken Burns and co. released their multi-part series on the Vietnam War this year: http://www.pbs.org/kenburns/the-vietnam-war/episodes/ http://www.pbs.org/kenburns/the-vietnam-war/episodes/ That has likely contributed to an uptick in general interest in the subject.