In this article, we explore the cognitive process and resources drawn upon when moderating artwork. The cognitive processes involved in the external moderation of non-exam assessments has received little attention; the few research studies that exist investigated moderation where the candidates' submissions were in mostly written form. No studies were found which explicitly looked at a non-written submission, such as artwork. In this small- scale study, participating moderators were asked to "think aloud" whilst moderating candidates' Art and Design submissions. An analysis of the resulting verbal protocol and observational data enabled timelines of moderator activity to be produced. From these, a process map containing moderation stages, activities, cognitive processes, and resource use was developed.