Shirley Trevena is a well-known watercolourist with an international reputation who is regarded as one of Britain's most innovative artists in the medium. She is a Member of the Royal Institute of Painters in Watercolour and is author of three best-selling books, Taking Risks with Watercolour , Vibrant Watercolours, Breaking the Rules of Watercolour and DVDs. In 2010 she was the British representative at the International Watercolour Festival in Antwerp.