Instruct: Classify the given review into positive or negative sentiment.
Query: Timeless Principles

Lean Thinking illustrates principles from Eliyhu Goldratt's "The Goal", using specific examples of organizations that have used a common sense approach to eliminating waste in obtaining a market advantage. The book advocates using internal talent to re-examine processes and discourages benchmarking. This is a bit ironic as the book is full of benchmark examples. The company I work for is currently implementing lean principles with a good degree of success. The book has been a great resource for our continuous improvement champions as it has shifted the ways in which they think.