Artist Terry Rosenberg sees drawing as crucial to the creative enterprise. In this introduction to a four-part lecture series he discusses the role of the image, concentrating on visuality or 'sight as social thought'. In an age addicted to the image - its nature, essence and substance as that which circumscribes and inscribes - thought seems to be eroded. By examining the image's determinations, its relation to its support, and concluding that it is 'the ultimate reference in the mind', Rosenberg structures an enquiry into what Deleuze termed the 'thinking image'. Terry Rosenberg is a lecturer in Design at Goldsmiths College, UCL. He has lectured in Fine Art and Design in a number of art schools in London, including a five-year period at the RCA.