1. The Lever of Riches, by Joel Mokyr 2. Guns Germs and Steel, by Jared Diamond 3. A Farewell to Alms, by Gregory Clark 4. Power and Prosperity, by Mancur Olsen

1. The Lever of Riches, by Joel Mokyr 2. Guns Germs and Steel, by Jared Diamond 3. A Farewell to Alms, by Gregory Clark 4. Power and Prosperity, by Mancur Olsen 5. Carnage and Culture, Victor Davis Hanson 6. Capital Ideas, by Peter Bernstein 7. The Geodesic Network, by Peter Huber