This document introduces Improvement Kanban, a method for organizational change. It uses Kanban principles to understand and manage different types of change, including planned, retrospective, evolutionary, and directed change. Constraints like work-in-progress limits are used to shape the change landscape and enable incremental improvement. Both planned and retrospective change elements are integrated through a reflective learning process. The goal is to cultivate continuous improvement habits using principles from Lean, systems thinking, and complexity theory.