This title analyses Deleuze's notion of transcendental and genetic Ideas as conditions of creative thought. From his early work in Nietzsche and Philosophy to Difference and Repetition, Deleuze develops a unique notion of transcendental philosophy. It comprises a radical critique of the illusions of representation and a genetic model of thought. Engaging with questions of representation, Ideas and the transcendental, Daniela Voss offers a sophisticated treatment of the Kantian aspects of Deleuze's thought, taking account of Leibniz, Maimon, Lautman and Nietzsche along the way. It demonstrates that Deleuze's early philosophy is transcendental. It puts forward a new understanding of the transcendental conditions of thought. It gives insight into how Deleuze's thought developed along the lines of thinkers such as Leibniz, Kant, Maimon, Bergson, Nietzsche and Klossowski.