Discover how user story mapping can reduce development waste and unify team members behind a well-defined goal in this 59-minute GDC 2019 session. Learn to implement the "Now and Later" model, utilize opportunity canvases, and collaboratively tell stories to create a shared understanding. Explore techniques like the product frame, fist of five voting, and rock breaking to prioritize tasks and build incrementally. Gain insights on developing minimum viable solutions, treating releases as experiments, and fostering group buy-in. Understand why stories are not written requirements but rather tools to encourage conversations and interactions that lead to better project understanding.