In this short video we hear from three pioneers in the world of social entrepreneurs: Nigel Kershaw, Executive Chairman of the Big Issue Group; Claire Dove, Chair of Social Enterprise UK and CEO of the Blackburne House Group; and Andrea Coleman, co-Founder and CEO of Riders for Health. They tell us what being a social entrepreneur means to them, why social entrepreneurship is important, and what they see as the greatest challenges for the rapidly growing field.