Like breathing, the human capacity for language is something we take for granted. How is it that we so effortlessly listen, understand, and make sense of the sounds and squiggles we are bombarded with from the moment we’re born? Language offers a window of insight into other people’s minds, allowing us to understand their thoughts, intentions, beliefs, desires, and knowledge. By the time we’re adults, humans carry information about tens of thousands of words, about what those words mean, how they’re spelled, how they sound, and how to join them up into sentences, paragraphs, and conversations. In short, human language allows us to put thoughts into other people’s heads, and to access the thoughts that are in other people’s heads. Topics explored in this course include how language develops in infants and children, how adults use language to understand the world, how the human brain supports language, and what happens to language when brain function is divergent.