In this book, addressing the reality that non-state actors do violate human rights in practice, which cannot be overlooked, Prof. Nicolás Carrillo-Santarelli argues that the foundations and main principles of international human rights law call for the regulation of direct nonstate obligations and responsibilities, given the potential failure of domestic actions and the limits of voluntary strategies. In part I, the author presents his ideas on why non-state abuses should be regarded as human rights violations and wrongful acts. In this sense, Chapter 1 explores why the protection of human dignity, being non-conditional, cannot depend on the presence of a State abuser. Chapter 2 explores the idea that every conduct contrary to human rights has legal relevance and requires a correlative appropriate legal response. Chapter 3 reinforces the previous ideas in light of the peremptory principle of non-discrimination; with Chapter 4 providing suggestions on when direct international action should take place. Part II, afterwards, studies why direct protection from non-state violations is possible and what legal mechanisms and institutions permit to make it effective. In Chapter 5, the author argues that the notion of international legal personality is not an obstacle since regarding addressees as subjects highlights the possibility of there being direct non-state international duties, which would not weaken existing human rights protections. Chapter 6 presents the argument that there are already implied human rights obligations of non-state actors, and that complementary obligations should be created. Chapter 7 explores the idea that non-state responsibility can coexist with that of other participants in violations, and that non-state responsibility is often a precondition of full reparations. The fi nal Chapter turns to the examination of the mechanisms that can be used to respond to or prevent non-state violations of human rights law. The book is based on the idea that the protagonists of human rights law are individuals, who deserve protection from all abusers, be them States, armed groups, international organizations, or other actors.