You have no doubt asked yourself this question after watching a play: "How did those actors memorize all those lines?". In previous episodes of The Psych Files I have discussed a few of the techniques actors use to do this, but on this episode I have an interview with a professional actor, Jared Kelner, who wrote a fascinating book exactly on this topic. It's called, naturally, "Line?". If you're interested in psychology, memory, and how actors accomplish the amazing feat of memorization - especially for long plays containing many many lines (perhaps for a Shakespearean play). Here are the answers.