If there is one word that characterizes Javier Milei's political thought and action, it is liberal, although his perspective encompasses variants that include libertarianism, anarcho-capitalism and minarchism. Political analysts have also labeled him as paleolibertarian or liberal populist, reflecting the complexity of his ideas and his heterodox approach. Milei has traits that could place him in any of these categories. But he is a liberal in the broadest sense of the expression, that is, a person who advocates limiting the power of the state in order to promote individual freedom. This book analyzes his liberalism from different points of view and how it manifests itself in different aspects: values, politics and economics. And it offers a deep understanding of liberalism in contemporary Argentine politics and invites reflection on the role of the state, individual freedom and the future of the nation in an ever-changing world. He begins by examining his originality, having been accused of plagiarism and the misappropriation of others' works, as he reflects on the history of liberalism in Argentina. From the brilliant liberal era of 1880 to 1930 to the personalities who have kept the flame of liberalism burning in periods of obscurity, he traces a journey to understand the context in which Milei emerges as a political leader. It also exposes the possibilities of his liberal government to implement his policies and to bring them to fruition.