This document provides an overview of Lean workshops and presentations offered by Marek Piatkowski. It includes descriptions of 20 different workshops ranging from introductory to advanced levels that cover topics such as standardized work, visual management, value stream mapping, problem solving, and developing strategic plans using Hoshin Kanri methodology. Each workshop description includes the target audience, format, and objectives. The document establishes Marek Piatkowski's background and experience in Lean transformation and Toyota Production System practices.