Book Review: This is Lean – Resolving the Efficiency Paradox by Niklas Modig and Pär Åhlström

This is Lean – Resolving the Efficiency Paradox is an ambitious contribution to the genre of easy reader introductions to lean. It is ambitious because the authors Niklas Modig and Par Ahlstrom have a dual ambition. Their aim is to combine an easy reader explaining the concept of lean in an understandable way for an uninitiated audience with a theoretical and conceptual ambition, namely to provide the definitive answer to the question What is Lean? It is this combined ambition of simplifying and making a substantial theoretical contribution that has prompted us to write this review.