DNA: The Secret of Life (2003) by James D. Watson
	Emotional Intelligence: Why It Can Matter More Than IQ (1995) by Daniel Goleman
	Exposition of the System of the World (1796) by Pierre Laplace
	First Annual Message to Congress, 1865 (1865) by Andrew Johnson
	Fourth Annual Message to Congress, 1868 (1868) by Andrew Johnson
	Gaia: A New Look at Life on Earth (1979) by James Lovelock
	King Solomon's Ring (1949) by Konrad Lorenz
	La Science et l'Hypothèse (Science and Hypothesis) (1902) by Henri Poincare
	Manwatching: A Field Guide to Human Behaviour (1977) by Desmond Morris
	Popular Astronomy (1878) by Simon Newcomb
	QED: The Strange Theory of Light and Matter (1985) by Richard P. Feynman
	Quantum Psychology: How Brain Software Programs You and Your World (1990) by Robert Anton Wilson
	Second Annual Message to Congress, 1866 (1866) by Andrew Johnson
	Social Intelligence: The New Science of Human Relationships (2006) by Daniel Goleman
	Surely You're Joking, Mr. Feynman!: Adventures of a Curious Character (1985) by Richard P. Feynman
	The Ages of Gaia: A Biography of Our Living Earth (1988) by James Lovelock
	The History of the Earth and Animated Nature (1774) by Oliver Goldsmith
	The Human Animal (1994) by Desmond Morris
	The Human Zoo (1969) by Desmond Morris
	The Naked Ape (1967) by Desmond Morris
	The Pleasure of Finding Things Out (1999) by Richard P. Feynman
	The Restless Universe (1951) by Max Born
	Third Annual Message to Congress, 1867 (1867) by Andrew Johnson