This is a valuable contribution to the growing field of work that attempts a critical engagement with the work of Deleuze and Guattari. To bring the work of these philosophers in line with particular art practices is no easy thing but the author manages this with deceptive ease. I was most impressed by the clarity and sincerity of his writing. An expanded notion of art practice in relation to theory, which is a key aspect of this book, can easily become meaningless yet Simon O'Sullivan negotiates well the connections and the specificities of both cultural domains. Use all of it to break habits and produce something radically different. This is a good start.