It was only when Gill Whitty-Collins, author of Why Men Win at Work, reached the top of a global consumer company that she realised how sexist the workplace can be,

In a provocative call to arms she urges all men and women to take action now for better diversity friendly workplaces so that everybody can reach their potential.

According to a report by the management consultancy Mckinsey the business case for diversity has never been stronger - put simply those companies with more diverse boards perform better on every scale.

By researching the top 7% of women who do reach the highest positions Gill reveals some fascinating insights... worth listening just for these.