Macat Piketty

How do those in power exercise that power over a state's citizens? French thinker Michel Foucault's 1975 work Discipline and Punish looks to answer this question by investigating the prison system. Foucault does not believe that the modern-day system developed out of reformers' humanitarian concerns. He argues that prison both created and then became part of a bigger system of surveillance that extends throughout society.

Frantz Fanon's Black Skin, White Masks offers a radical analysis of the psychological effects of colonization on the colonized. Born in 1925 on the island of Martinique - at the time a French colony - Fanon witnessed firsthand the abuses of white colonizers and the system's effects on his country. His revulsion was only confirmed later in life when he worked as a psychiatrist in Algeria, another French colony.

First published in 1996, Our Ecological Footprint sets out a powerful model for visualizing and measuring humanity's impact on the Earth - the ecological footprint - with the aim of reducing the harm we are causing the planet before it is too late. Although numerous organizations, governments, and individuals worldwide have now adopted the concept of ecological footprinting, the idea has also proved to be controversial.

Rachel Carson worked at the US Bureau of Fisheries for 15 years while developing a writing career at the same time. Her first book, 1941's Under the Sea Wind, became a best seller, but it was eclipsed by 1962's Silent Spring, one of the first books ever to highlight environmentalist issues. Carson focuses on the negative, widespread, and long-lasting effects of human activity on the environment, and illustrates this through one case study - the use of chemical pesticides in agriculture. Throughout Silent Spring, Carson argues against man's short-termist interfering in the natural world and highlights the potential dangers for both humanity and wildlife.

Economist Amartya Sen's 1997 work Development as Freedom presents a "middle way" approach to how we should look at international development, based on the idea that its success or failure cannot be measured by income alone. Having grown up in India, Sen brings his own understanding of what poverty really means to the issue, arguing that above all, the process and goal of development must be human freedom. He backs up this idea through his concept of "capabilities" - the capacity a person has to do the things he or she believes make for a good life.

English naturalist and geologist Charles Darwin first published On the Origin of Species in 1859. The idea of evolution and that all earth's species have descended from a common ancestor had already been around for some time. What was new about Darwin's work was that it found a way to explain evolution using a theory called natural selection.

The era after World War II saw America's urban planners treat the lives of city-dwellers with disdain. It spawned a philosophy of urban renewal that valued the efficient movement of cars more than it valued the lives of people, and that wiped out entire neighborhoods dismissed by bureaucrats as slums. Published in 1961, Jane Jacobs's The Death and Life of Great American Cities examines the shortsightedness and failure of this philosophy.

Born in 1921, Betty Friedan was an American psychology graduate, political activist, journalist, wife, and mother who challenged the vision 1950s America had of itself as a nation of happy housewives in contented families.

Neurologist Oliver Sacks' 1985 book The Man Who Mistook His Wife for a Hat challenges the impersonal approach doctors took to patient care and paved the way for a new literary genre: popular science.