This document is the Accepted Manuscript version of the following article: Michael Biggs, ‘Graphetics: When mark-making becomes writing’, Drawing: Research, Theory, Practice, Vol. 3 (1): 13-28, April 2018. Under embargo until 1 April 2019. The final, definitive version of this paper is available online at doi: https://doi.org/10.1386/drtp.3.1.13_1.Graphetics is the study of how one recognizes text, and how one differentiates it from other marks and drawings, for example when one views a manuscript and has to decide ‘is this writing or just scribble?’. This article focuses on the pragmatics of graphetics and on the (philosophical) complexity of differentiating graphs into linguistic and non-linguistic content, i.e. the difference between see...