This work offers a summary of the book: "Playing to Win: How Strategy Really Works" by A.G. Lafley and Roger L. Martin. Summary of the ideas in A.G. Lafley's and Roger L. Martin's book: "Playing to Win" explains that strategy is about playing choices pure and simple. This summary highlights the questions you need to answer to develop a winning strategy, which is viable, actionable and sustainable: What is your winning aspiration? Where will you play? How you can win there? What capabilities do you need? What management systems will be required to support it all? Added- value of this sum