Risk often gets a bad press. From the seemingly unnecessary actions of extreme sportspeople to the excessive risk appetites of serial entrepreneurs, the term 'risky' is often seen as synonymous with 'reckless', 'foolhardy' or even downright dangerous. But could any of us live in a world without risk, and would it be desirable to do so? Through a series of nine wonderfully rich pen portraits, Polly Morland takes us on a journey through the world of risk.