Sufism
William C. Chittick
Energy
Vaclav Smil
Oil
Vaclav Smil
Evolutionary Psychology
Robin Dunbar, John Lycett & Louise Barrett
Opera
Alexandra Wilson
Astronomy
William H. Waller
The Palestine-Israeli Conflict
Dan Cohn-Sherbok & Dawoud El-Alami
Humanism
Peter Cave
Biodiversity
John Spicer
Imperial China
Peter Lorge