Contributor(s): Gillian Tett | Gillian Tett takes us inside the shadowy world of complex finance and derivatives and explains how the business of slicing and dicing debt led us to the devastating global credit crunch. Gillian Tett has worked as a journalist for the Financial Times for fifteen years. In 2008 she won the British Press Award for the Financial Journalist of the Year. This event marks the publication of her latest book Fool's Gold :How Unrestrained Greed Corrupted a Dream, Shattered Global Markets and Unleashed a Catastrophe.