After revolutionizing the automobile industry, Lean principles have been applied to different knowledge areas, such as software development. However, many people haven’t been introduced to the concepts that made Lean successful. In this interactive session, the participants will work in a small Lego production line, experiencing the problems and applying Lean practices to overcome them. 8 to 20 participants, divided in 4 teams, will learn about: systems thinking, push vs. pull systems, waste, etc. We will also compare the production line scenario with the software development industry.