Is self-publishing changing the book industry?

Self publishing, once derided as "vanity publishing", is growing to become a bigger force in the book industry. Established authors and emerging talent are choosing this route, partly due to the disappearance of local representation and partly because it allows freedom in creative and marketing decisions. Kathryn speaks to author Kate de Goldi, publisher Mary Egan and bookseller Jo McColl about how self publishing is changing the industry.