This is the essential toolkit for anyone approaching Deleuze for the first time. "Difference and Repetition" (first published in 1968) is widely accepted as Gilles Deleuze's most important work of philosophy and one of the most significant texts of contemporary philosophy. Students face two main hurdles faced when approaching i: the wide range of philosophical sources Deleuze draws upon and the density of his philosophical prose. Henry Somers-Hall situates Deleuze within the broader philosophical tradition and makes it clear why he develops his philosophy in the way that he does. It is written to be read alongside Difference and Repetition. It introduces the key themes of the book. It presents a new, positive, alternative philosophy of difference.