Book excerpt: Lucy Willis is a well-known and successful watercolourist, renowned for her atmospheric paintings full of sunlight and shade. In her third book , Sunlight and Shadows in Watercolour, Lucy Willis shares her professional tips and expertise on painting inspirational landscapes and interiors full of light. There are several step-by-step demonstration paintings on how to achieve the different effects of light – bright sunlight, shadows, dappled light and night-time scenes. In addition, Lucy shows how to paint from photographs, how to mix colour, and stresses the importance of tone in creating a successful composition. The themes and subjects covered are Landscape, Water, Gardens, Architecture, Interiors, Still Life, Portraits and the importance of keeping a sketchbook. Lucy Willis encourages all watercolourists, whatever their level, to exploit the versatile effects of watercolour and produce exciting, atmospheric work of their own.