'The world does not exist outside of its expression' The works of Gilles Deleuze and Felix Guattari have had an impact far beyond philosophy. Although they famously claim "the world does not exist outside of its expression", expression remains an overlooked aspect of their work. A Shock to Thought brings together a collection of excellent essays that explore the implications of Deleuze and Guattari's philosophy of expression in a number of contemporary contexts: beauty versus modernism, reflection to postmodernism, sensation and politics, the conditions of emergence, and the virtual in politics, poetry, music and digital culture. The volume also makes available an interview with Guattari which clearly restates the "aesthetic paradigm" that organizes both his and Deleuze's work. A Shock to Thought will be of interest to all those in philosophy, cultural studies, and art theory. Melissa McMahon, Steven Shaviro, Stephen O'Connell, Brian Massumi, Paul Bains, Garry Genosko, Alan Bourassa, Michael Hardt, Catherine Dale, Thomas Lamarre, Aden Evens, Andrew Murphie, Bracha Lichtenbe