Lean Six Sigma was first introduced by a book entitled "Leaning into Six Sigma: The Path to Integration of Lean Enterprise and Six Sigma." The book was written as a guide for managers of manufacturing plants on how to incorporate lean manufacturing and Six Sigma methodology to help improve the quality and cycle time of plant production. Since then, Lean Six Sigma has been adopted in healthcare, finance, supply chain, and many more industries. Blending two previously independent approaches to business optimization opens to the door to many ways that a team can improve their operations.