Is there one book that you think every environmental educator should read?

Is it Silent Spring, perhaps?  Or Walden?  The Natural History of Selbourne, maybe, or A Sand County Almanac?  Then there’s Last Child in the Woods, Small is Beautiful or The Web of Life.  The Prelude, perchance, The Deserted Village, or The Mores?  And Emile?  And what about Bedford 2046, Marx’s Ecology, The Child in the City, or Streetwise?  And how about Deep Ecology: living as if nature mattered?  Then there is The Skeptical Environmentalist, or Capitalism as if the World Matters.  Or Collapse: How Societies Choose to Fail or Survive, Forces of Change: an unorthodox view of history,  and so on.

This question sounds like a good ice-breaker at a certain sort of conference.

The other week, NAAEE asked its Facebook followers the question.  Their answers included:

You can see the whole list and follow the discussion here.

Thoughts welcome.