This document provides guidance on how to lead a Lean workout (also known as a Kaizen event) to improve processes using Lean tools and concepts. It begins with an introduction to Lean workouts, outlining that they are extended meetings lasting 1-5 days that involve all process stakeholders. The overall process for a Lean workout follows an IPO (input, process, output) model. The document then provides detailed guidance on each step of leading a Lean workout, including defining the problem and scope, building current and future process maps, identifying and measuring waste, and creating an implementation plan with owners and due dates. It concludes by suggesting processes to consider improving with a Lean workout.