A new process philosophy of signs where process becomes primary and fixed relation secondary Behind Red Doors Signs Process and the Political a post by James Williams on the Edinburgh University Press blogWhat is a sign We usually think that it is a fixed relation a red light signifies Stop In his bold new book James Williams now argues that signs are varying processes seeing the red light triggers a creative response to the question Should I stop Williams develops this new process philosophy of signs through a formal model in contrast to earlier structuralist definitions He draws on the philosophies of Deleuze and Whitehead criticises earlier work on the sign in biology by Jakob von Uexkull and connects to contemporary work on process in the philosophy of biology by John Dupre The process model has wide applications in the arts humanities and social sciences and informs their critical debates with science In defining the sign as essentially political this radical definition of the sign opens up new possibilities for social and political critique