This paper explores Ilyenkov’s conception of imagination as it is expressed in his writings on aesthetics and in his 1968 book Ob idolakh i idealakh (Of Idols and Ideals). Ilyenkov deemed imagination and creativity to be central to the character of distinctively human forms of mental activity. After examining the many different contexts in which Ilyenkov sees imagination at work—from the most basic operations of perception to the expression of artistic and scientific genius—I bring his ideas into dialogue with the (...) account of imagination developed in Vygotsky’s writings. I argue that, though there are significant differences, their respective approaches are complementary. Both see imagination not simply as a vehicle of fantasy, but as intimately involved in disclosing reality. Moreover, both thinkers are reluctant to cast imagination as a discrete mental function on a par with reason, memory, will, etc. Imagination, rather, is critical to the way in which mental functions express themselves. The paper concludes with a brief discussion of whether children can be taught to be creative and imaginative. (shrink)