Classics, modern fiction, non-fiction and more. Written for secondary and adult students the Oxford Bookworms Library has seven reading levels from A1-C1 of the CEFR. Listen along with downloadable MP3 audio. When the pigs become the farm's new leaders, everyone is happy. After all, some of these pigs really are so clever and have excellent ideas. But then things start to go badly wrong. George Orwell's famous book warns us about leaders who only think about themselves, and tells a story that still matters.