Jean-Paul Sartre
In 1945, Sartre started a newspaper called Les Temps Modernes (Modern Times), which had articles about politics, art and literature. He also began writing a group of novels (stories) called Les Chemins de la Liberté (The Roads to Freedom). In 1946 Sartre wrote a book about philosophy (ways of thinking) called Existentialism is a Humanism, which explains existentialism.