With its comprehensive coverage of political and security matters, human rights issues, economic and social questions, legal issues, and institutional, administrative and budgetary matters, the Yearbook of the United Nations stands as the most authoritative reference work on the activities and concerns of the Organization. Fully indexed, the Yearbook includes the texts of all major General Assembly, Security Council and Economic and Social Council resolutions and decisions, putting all of these in a narrative context of United Nations consideration, decision and action. In 2009, the Secretary-General called for the United Nations to become the hub of the new multilateralism. This latest volume of the Yearbook, the sixty-third, highlights the response of the Organization to the spreading economic crisis, ongoing food insecurity, and the influenza A(H1N1) pandemic, along with the looming climate crisis, against a broad spectrum of security, development, humanitarian and human rights challenges.