Theory on Theory' names a body of work which investigates the inheritances of theory and suggests future directions. As David Winters has observed in a previous edition, writing of this kind has been associated with declarations of the'death of theory' (YWCCT 22:i[2014] 2), the contention that we exist 'after' it. On the contrary: theory continues to mutate. This chapter will focus upon work published in 2015; the variety of topics covered attests to the growing range of theoretical concerns. There have been re-evaluations of the work of major figures in the field: a new journal focusing on the work of Roland Barthes, accompanied by a feast of newly-translated material written by him, prompts a consideration of his legacy and its significan...