Lean concept: In this introductory chapter, the lean concept is defined and its origin is explained. An introduction is given on how to apply the lean concept in writing, together with some benefits and challenges of lean writing. Lean writing approach: This chapter explains in detail what the lean writing approach entails and how it can be implemented in any writing process. Tips & tricks (focus on audience): This chapter explains how to use the lean writing approach in practice by providing practical tips and tricks on what to write, how to write, and how to present information. Tips & tricks (eliminate waste): This chapter explains how to use the lean writing approach in practice by providing practical tips and tricks to find and eliminate all elements that do not add value. Test your knowledge: This chapter puts the trainee's knowledge on lean writing as gained during this training to the test. Summary: This chapter includes a summary slide to wrap up this training. Suggested reading: This chapter includes a slide with an overview of interesting materials for further reading.