Diplomacy (from Latin diploma, meaning an official document, which in turn derives from the Greek δίπλωμα, meaning a folded paper/document) is the art and practice of conducting negotiations between representatives of groups or states. It usually refers to international diplomacy, the conduct of international relations through the intercession of professional diplomats with regard to issues of peace-making, trade, war, economics, culture, environment and human rights. International treaties are usually negotiated by diplomats prior to endorsement by national politicians. In an informal or social sense, diplomacy is the employment of tact to gain strategic advantage or to find mutually acceptable solutions to a common challenge, one set of tools being the phrasing of statements in a non-confrontational, or polite manner.

The scholarly discipline of diplomatics, dealing with the study of old documents, derives its name from the same source, but its modern meaning is quite distinct from the activity of diplomacy.

Madeleine Korbelová Albright (born May 15, 1937) was the first woman to become the United States Secretary of State. She was appointed by US President Bill Clinton on December 5, 1996, and was unanimously confirmed by a U.S. Senate vote of 99–0. She was sworn in on January 23, 1997.

Albright currently serves as a Professor of International Relations at Georgetown University's Walsh School of Foreign Service. She holds a PhD from Columbia University. She holds honorary degrees from Brandeis University (1996); the University of Washington (2002); Smith College (2003); University of Winnipeg (2005); the University of North Carolina at Chapel Hill (2007), and Knox College (2008). In May 2012, she was awarded the Presidential Medal of Freedom by US President Barack Obama. Secretary Albright also serves as a Director on the Board of the Council on Foreign Relations.

Albright is fluent in English, French, Russian, and Czech; she speaks and reads Polish and Serbo-Croatian as well.

Albright was born Marie Jana Korbelová (Czech pronunciation: [ˈmarɪjɛ ˈjana ˈkorbɛlovaː]) in the Smíchov district of Prague, Czechoslovakia. At the time of her birth, Czechoslovakia had been independent for less than twenty years, having gained independence from Austria after World War I. Her father, Josef Korbel, was a Czech Jewish diplomat and supporter of the early Czech democrats, Tomáš Garrigue Masaryk and Edvard Beneš. She was his first child with his Jewish wife, Anna (née Spieglová), who later also had another daughter Katherine (a schoolteacher) and son John (an economist).

Joseph Samuel Nye, Jr. (born January 19, 1937) is the co-founder, along with Robert Keohane, of the international relations theory neoliberalism, developed in their 1977 book Power and Interdependence. Together with Keohane, he developed the concepts of asymmetrical and complex interdependence. They also explored transnational relations and world politics in an edited volume in the 1970s. More recently, he pioneered the theory of soft power. His notion of "smart power" became popular with the use of this phrase by members of the Clinton administration, and more recently the Obama Administration. Nye is currently University Distinguished Service Professor at Harvard University, and previously served as dean of Harvard University's John F. Kennedy School of Government. He also serves as a Guiding Coalition member for the Project on National Security Reform.

The 2011 TRIP survey of over 1700 international relations scholars ranks Joe Nye as the sixth most influential scholar in the field of international relations in the past twenty years.

Daryl Copeland is a Canadian analyst, author, speaker and educator specializing in diplomacy, international policy, public management and global issues. Copeland's institutional affiliations include the University of Toronto's Munk Centre for International Studies as a Senior Fellow, and the USC Center on Public Diplomacy as a Research Fellow.

Copeland grew up in downtown Toronto, and received his formal education at the University of Western Ontario (Gold Medal, Political Science; Chancellor's Prize, Social Sciences) and the Norman Paterson School of International Affairs (Canada Council Special MA Scholarship).

From 1981 to 2009 Copeland served as a Canadian diplomat with postings in Thailand, Ethiopia, New Zealand and Malaysia. During the 1980s and 1990s, he was elected a record five times to the Executive Committee of the Professional Association of Foreign Service Officers. From 1996-99 he was National Program Director of the Canadian Institute of International Affairs in Toronto and Editor of Behind the Headlines, Canada’s international affairs magazine. In 2000, he received the Canadian Foreign Service Officer Award.

Heinz Alfred "Henry" Kissinger ( /ˈkɪsɪndʒər/; born May 27, 1923) is a German-born American writer, political scientist, diplomat, and businessman. A recipient of the Nobel Peace Prize, he served as National Security Advisor and later concurrently as Secretary of State in the administrations of Presidents Richard Nixon and Gerald Ford. After his term, his opinion was still sought by many subsequent presidents and many world leaders.

A proponent of Realpolitik, Kissinger played a dominant role in United States foreign policy between 1969 and 1977. During this period, he pioneered the policy of détente with the Soviet Union, orchestrated the opening of relations with the People's Republic of China, and negotiated the Paris Peace Accords, ending American involvement in the Vietnam War. Various American policies of that era, including the bombing of Cambodia, remain controversial to many.

Kissinger is still a controversial figure today. He is the founder and chairman of Kissinger Associates, an international consulting firm.