Recommended readings:

Small is Beautiful by E.F. Schumacher (1973)

An Inquiry into the Nature and Causes of the Wealth of Nations by Adam Smith (1776)

Who Owns the Sky?  Our Common Assets and the Future of Capitalism by Peter Barnes (2001)

The End of Nature by Bill McKibben (1989)

The Structure of Scientific Revolutions by Thomas S. Kuhn (Second Edition 1970)

Silent Spring by Rachel Carson (1962)