This document introduces Lean Six Sigma as a methodology for improving business performance and reducing costs. It discusses how traditional cost-cutting approaches can often do more harm than good without properly analyzing the drivers of costs. Lean Six Sigma is presented as a robust combination of Lean, which aims to eliminate waste, and Six Sigma, which uses data-driven approaches to reduce defects. Together, Lean Six Sigma works to eliminate sources of waste and variability in processes. This allows companies to improve quality, increase profits, and better satisfy customer needs with fewer resources.