This document provides an introduction to Lean Six Sigma White Belt training. It defines Six Sigma as a strategy for improving quality and cutting costs through a methodology using statistical tools. The goals are to achieve near-zero defect levels by striving for 6 standard deviations between the mean and nearest specification limit. Examples show the cost savings that can be achieved by reducing the number of defects from 3.4 sigma to 6 sigma levels. A brief history of Six Sigma outlines how various companies implemented it from the 1980s onward.