David Curtis outlines his approach to painting light-filled landscapes. He stresses the need to paint "plein air", with little or no studio work, and discusses techniques and materials suitable for this approach. Detailed instruction on preparing the materials for painting, and advice on composition and tonal range are all designed to enable the artist to capture the light effect that formed their original inspiration. The book includes examples of Curtis's work, including five step-by-step demonstrations where the artsit puts into practice the advice he has given.