Oil
Vaclav Smil
Energy
Vaclav Smil
The Roman Empire
Philip Matyszak
Genetics
Burton Guttman, David Suzuki, Tara Cullis & Anthony Griffiths
Ancient Philosophy
William J. Prior
Renaissance Art
Tom Nichols
Humanism
Peter Cave
The Bible
Paula Gooder
Evolutionary Psychology
Robin Dunbar, John Lycett & Louise Barrett
International Relations
Charles Jones