This document discusses how law libraries can use Lean Six Sigma concepts to improve operations in a way that achieves better, faster, cheaper (BFC) results while maintaining high quality client services. Lean Six Sigma aims to eliminate waste and defects through a data-driven, five-phase process of define, measure, analyze, improve, and control. The document provides examples of how each phase can be applied, such as using cause-and-effect diagrams or 5 whys to analyze root causes of issues in processes. Law librarians who learn Lean Six Sigma will be able to optimize library processes and demonstrate the library's value to its organization.