2. Crush Your Rivals

You've secured your place at the top, but maintaining power means watching your back. Nobody did that better or more ruthlessly than Saddam Hussein.

3. Reign Through Terror

When keeping your population under control, is it better to be loved or feared? Idi Amin certainly thought he knew the right answer to that question.

4. Control the Truth

Through public relations spin, revisionist history and censorship. Soviet autocrat Joseph Stalin found a certain flexibility with the truth useful.

5. Create a New Society

Free speech? Right to assembly? Rebel-turned-dictator Muammar Gaddafi realized that civil liberties had to go when reshaping society. But he got soft.

6. Rule Forever

Seizing power is hard, but keeping it is harder. In North Korea, the Kim dynasty unlocked the secret to ruling forever: They declared themselves gods.