The series of monoprints Starfield was executed by Carol Robertson with master printer Kip Gresham. The image of these unique variations of colours anticipate the larger scale evolution of the intersections of circles and layering of colours later seen in the 2012 series Crossover. For Robertson, colour is the most intuitive element in her work and is highly personal and associative. Carol Robertson has been using circles within her work for over thirty years. During this period, she has used a wide variety of geometric formations, yet she consistently returns to the circle. "Geometry allows me the freedom to channel a myriad of different material. It removes the potential chaos of having too many subject options yet remains open to sensory or poetic influence. I work with a variety of different geometric formations but it’s true to say I find the circle to be the purest, the most universal of all geometric shapes. I never tire of its associations with art and architecture, with ritual and religion and with the cosmos," explains Robertson.