Lean Six Sigma (LSS) is not as popular with small and medium-sized enterprises (SMEs) as it is with larger ones. However, many SMEs are suppliers to larger entities who are pushing for superior quality and world-class process efficiencies from suppliers. Because of this, the authors have come up with a practical and essential book for guiding SMEs in deploying LSS as their prime methodology for achieving and sustaining world-class efficiency and effectiveness of their critical business processes.