This document introduces Clean Language, a technique created by David Grove for exploring metaphors and unconscious thought. Clean Language uses precision questioning to reveal metaphors. It has various uses including improving team collaboration, communication, problem solving and creativity. Results from using Clean Language include people engaging more effectively, better understanding each other, being more productive with fewer conflicts. Skills developed include listening, clear thinking, giving feedback, and resolving conflicts. The document provides background on Clean Language's creator and contact information for the author, Judy Rees, who works with individuals and teams using Clean Language.