Annette Lareau is a sociologist working at the University of Pennsylvania. She is a graduate of U.C. Santa Cruz and earned her PhD in Sociology from U.C. Berkeley. She started her career at South Illinois University at Carbondale and also previously worked as a Professor of Sociology at Temple University, Pennsylvania from 1990-2005. She has served as a professor of Sociology at the University of Maryland, College Park, and in 2008 joined as professor of Sociology at the University of Pennsylvania where she is the Stanley I. Sheerr Professor. During the 2005-2006 school year she moved to Palo Alto, California to complete a residence at the Center for Advanced Study of Behavioral Sciences. Lareau has been very active with organizations such as the Eastern Sociological Society, Sociology of Education journal, and the American Sociological Association.

Lareau has completed extensive field work studying the daily lives of both African-Americans and European-Americans. She is also credited with the creation of the term concerted cultivation. This concept refers to middle class child rearing practices. She says that this differs from the parents of children in working class families, who attribute much of their child raising tactics to the accomplishment of natural growth.

Michelle LaVaughn Robinson Obama (born January 17, 1964) is the wife of the 44th and incumbent President of the United States, Barack Obama, and is the first African-American First Lady of the United States. Raised on the South Side of Chicago, Obama attended Princeton University and Harvard Law School before returning to Chicago and to work at the law firm Sidley Austin, where she met her future husband. Subsequently, she worked as part of the staff of Chicago mayor Richard M. Daley, and for the University of Chicago Medical Center.

Throughout 2007 and 2008, she helped campaign for her husband's presidential bid and delivered a keynote address at the 2008 Democratic National Convention. She is the mother of two daughters, Malia and Sasha, and is the sister of Craig Robinson, men's basketball coach at Oregon State University. As the wife of a Senator, and later the First Lady, she has become a fashion icon and role model for women, and an advocate for poverty awareness, nutrition and healthy eating.

Karl Heinrich Marx (5 May 1818 – 14 March 1883) was a German philosopher, economist, sociologist, historian, journalist, and revolutionary socialist. His ideas played a significant role in the development of social science and the socialist political movement. He published various books during his lifetime, with the most notable being The Communist Manifesto (1848) and Capital (1867–1894); some of his works were co-written with his friend and fellow German revolutionary socialist, Friedrich Engels.

Born into a wealthy middle class family in Trier, formerly in Prussian Rhineland now called Rhineland-Palatinate, Marx studied at both the University of Bonn and the University of Berlin, where he became interested in the philosophical ideas of the Young Hegelians. In 1836, he became engaged to Jenny von Westphalen, marrying her in 1843. After his studies, he wrote for a radical newspaper in Cologne, and began to work out his theory of dialectical materialism. Moving to Paris in 1843, he began writing for other radical newspapers. He met Engels in Paris, and the two men worked together on a series of books. Exiled to Brussels, he became a leading figure of the Communist League, before moving back to Cologne, where he founded his own newspaper. In 1849 he was exiled again and moved to London together with his wife and children. In London, where the family was reduced to poverty, Marx continued writing and formulating his theories about the nature of society and how he believed it could be improved, and also campaigned for socialism—he became a significant figure in the International Workingmen's Association.