Readers' suggestions for all four
The Practical Cogitator: The Thinker's Anthology, ed. Charles P. Curtis Jr. and Ferris Greenslet. The March of Folly: From Troy to Vietnam, Barbara W. Tuchman.
Weapons and Hope, Freeman Dyson.
The Fate of the Earth, Jonathan Schell.
Human Destiny, LeComte du Nouy.
Critical Path, R. Buckminster Fuller.
Real Peace, Richard M. Nixon.
State of the World, Worldwatch Institute.
The Butter Battle Book, Dr. Seuss.
Human Options, Norman Cousins.
The Economy in Mind, Warren T. Brookes.
Progress and Poverty, Henry George.
The Wind in the Willows, Kenneth Grahame.
Jonathan Livingston Seagull, Richard Bach.
The Aquarian Conspiracy, Marilyn Ferguson.
Warriors for Jerusalem, by Donald Neff.
The Zionist Connection, Alfred Lilienthal.
Decision on Palestine, Evan Wilson.
Living, Loving and Learning, Leo Buscaglia.
Beyond War Handbook, Creative Initiative.
Encounters with the Future, Marvin Cetron and Thomas O'Toole.