Book excerpt: Dialogue is one of the best vehicles for learning how to think, how to be reasonable, how to make moral decisions and how to understand another person's point of view. It is supremely flexible, instructional, collaborative, and rigorous. At its very best, dialogue is one of the best ways for participants to learn good habits of thinking. There is also substantial evidence that teachers currently talk too much in classes, often only waiting .8 seconds after asking a question before jumping in with the answer if a student doesn't quickly volunteer. This book guides teachers through the different types of dialogue and how they can be used to enhance students' learning.