BBC World Service - Good Bad Billionaire

Elon Musk: You decide!

It’s time to hear what you, our listeners, think of Elon Musk

How Lucy Guo went from college dropout to training the AI you use today

How David Geffen, the man behind your favourite music and movies, conquered Hollywood

How Spanx reshaped celebrity style and made Sara Blakely a billionaire

How Guy Laliberté reinvented the greatest show on earth

How Elon Musk became the richest person on the planet

How fashion and controversy fuelled the rise of Luciano Benetton

How Tyler Perry went from living in his car to becoming a Hollywood mogul

How Lakshmi Mittal built a steel empire and reshaped an entire industry

How Michael O’Leary turned Ryanair into the largest airline in Europe by cutting costs