This book aims to contribute to the global observance of the 75th anniversary of the Universal Declaration of Human Rights (UDHR), 1948. It considers nature and development of international human rights law. It considers how human rights interact with other regimes such as intellectual property, foreign direct investment, corporate social responsibility, international environmental law, humanitarian law, refugee law, economic law, and criminal law. The book then presents human rights of vulnerable populations and sets out contemporary challenges and issues relating to human rights, such as globalisation, the effects of COVID-19, religion, nationality, and the implementation of economic, social, and cultural rights.