Robert Michels (9 January 1876, Cologne, Germany — 3 May 1936, Rome, Italy) was a German sociologist who wrote on the political behavior of intellectual elites and contributed to elite theory. He is best known for his book Political Parties, which contains a description of the "iron law of oligarchy.", published in 1911. He was a student of Max Weber, a friend and disciple of Werner Sombart and Achille Loria. Politically, he moved from the Social Democratic Party of Germany to the Italian Socialist Party, adhering to the Italian revolutionary syndicalist wing and later to Italian Fascism, which he saw as a more democratic form of socialism. His ideas provided the basis of moderation theory which delineates the processes through which radical political groups are incorporated into the existing political system.

Michels, from a wealthy German family, studied in England, Paris (at the Sorbonne), and at universities in Munich, Leipzig (1897), Halle (1898), and Turin. He became a Socialist while teaching at the University of Marburg and became active in the radical wing of the Social Democratic Party of Germany; he left the party in 1907.

Joanne "Jo" Rowling, ( /ˈroʊlɪŋ/) OBE, FRSL (born 31 July 1965), known as J. K. Rowling, is a British novelist, best known as the author of the Harry Potter fantasy series. The Potter books have gained worldwide attention, won multiple awards, sold more than 400 million copies to become the best-selling book series in history and been the basis for a popular series of films, in which Rowling had overall approval on the scripts as well as maintaining creative control by serving as a producer on the final instalment. Rowling conceived the idea for the series on a train trip from Manchester to London in 1990.

Rowling has led a "rags to riches" life story, in which she progressed from living on social security to multi-millionaire status within five years. As of March 2011^[update], when its latest world billionaires list was published, Forbes estimated Rowling's net worth to be US$1 billion. The 2008 Sunday Times Rich List estimated Rowling's fortune at £560 million ($798 million), ranking her as the twelfth richest woman in the United Kingdom.Forbes ranked Rowling as the forty-eighth most powerful celebrity of 2007, and Time magazine named her as a runner-up for its 2007 Person of the Year, noting the social, moral, and political inspiration she has given her fans. In October 2010, J. K. Rowling was named 'Most Influential Woman in Britain' by leading magazine editors. She has become a notable philanthropist, supporting such charities as Comic Relief, One Parent Families, Multiple Sclerosis Society of Great Britain, and Lumos (formerly the Children's High Level Group).