Rory Sutherland tells a story illustrating how creative Choice Architecture can be. A European car manufacturer was trying to shift its cars in a sluggish market. It tried all the conventional solutions.

Salman Khan was a hedge fund manager from Boston. He had three degrees, and an MBA from Harvard. So this is a bright guy. But he was also a natural teacher. He loved to look at complicated things and make them simple.

The main railway station in Warsaw is just like any station. People are standing around, waiting to board a train, or meet friends. And, just like any station, trains are often delayed.

Snapshot A brand in danger of losing its way gave itself a makeover and brought a healthy glow to its performance. Key insights

Snapshot By rethinking its approach to cultural differences and finding common ground in the regenerative power of colour, Dulux became a truly global brand. Key insights

When I discovered that the discipline most closely related to branding was not psychology or sociology but anthropology, I also discovered that in the UK, anthropologists were still busy investigating primitive tribes in New Guinea.