This chapter explores a range of drawing practices to consider how characteristics of analogue and digital transmission can be exploited for expressive effect. In drawing, the distinction between the analogue and the digital is subject to multiple pressures, especially due to the tendency of computer technology to move towards the appearance of transparent and continuous analogue transmission, and due to the conceptual possibilities of artefacts that are digital but not digitized, which introduce the prospect of continuous digital transmission. Such pressures offer scope to expose, emphasize or critique the longer lineage of mimetic transmission drawing constructs. The discussion refers to practitioners working in mathematics, software development and fine art, including John Berger, Susan Turcot, Herbert Franke, A. Michael Noll, Ivan Sutherland, Jochem Hendricks and Charlotte Webb.