Noam Chomsky is an American linguist, philosopher, cognitive scientist, historian, logician, social critic, and political activist. Sometimes described as "the father of modern linguistics", Chomsky is also a major figure in analytic philosophy, and one of the founders of the field of cognitive science. He has spent more than half a century at the Massachusetts Institute of Technology (MIT), where he is Institute Professor Emeritus, and is the author of over 100 books on topics such as linguistics, war, politics, and mass media. Ideologically, he aligns with anarcho-syndicalism and libertarian socialism.