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six logic consultingsearch?q=six logic consultingurl?q=https://www.routledge.com/Lean-Six-Sigma-for-Engineers-and-Managers-With-Applied-Case-Studies/Franchetti/p/book/9780367783563 from books.google.com
This book demonstrates both the basics of improvement (i.e. results) with the "how to" (i.e. the methodology) in a very simple format that everyone within your organization will understand.