I am preparing a list for my children and grandchildren of the _____ (to be filled in) non-fiction books everyone should read. To date, I have only four, all of which I have read. In alphabetical order by author: Charles Darwin, "On the Origin of Species by Natuarla Selectin." Noccolo Machiavelli, "The Prince." Sun-Tzu, "The Art of War." H. G. Wells, "The Outline of History (1939 edition). For the record, I am a 70+ year old retired attorney, who has always been a voarcious reader. Criticism and suggestions are welcome.