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.