It is frequently remarked that drawings (my drawings anyway) lack colour, few pause to consider that colour itself has limitations: line works in ways that colour cannot. For my purposes, on the whole, colour simplifies rather than ‘enriches’, say. Sometimes I resort to a kind of colour-coding to resolve ambiguities that can arise when working out the more complex drawings. From time to time, however, I exploit the qualities of paint (and colour) for its own sake, when the visual proposition requires surface areas to be blocked out, for example.