Gilles Deleuze is without question one of the most influential thinkers of the twentieth century.
Difference and Repetition
is a classic work of contemporary philosophy and a key text in Deleuze's oeuvre, a brilliant exposition of the critique of identity that develops two key concepts: pure difference and complex repetition.
Deleuze's 'Difference and Repetition': A Reader's Guide
offers a concise and accessible introduction to this hugely important and yet notoriously demanding work.