Last month John Green started a new Crash Course series on classic literature. The first installment was about The Odyssey. The latest installment tackles the first half of Shakespeare’s Hamlet. Ghosts, Murder, and More Murder, embedded below, follows the same format as all Crash Course videos in which Green opens with a fast introduction to the whole work then uses a mix of analogies to modern terms to explain the story’s key points. Just like reading CliffsNotes isn’t a replacement for reading the story, watching a Crash Course video is not a replacement for reading.