Thinking about how one thing affects another either comes naturally to you or it doesn't. For most people it is the latter. For these people, The Fifth Discipline is a wonderful gift. Our emotions tell us to do one thing, and that one thing is usually not in our own best interest. I had heard clients of mine talk about the beer game, and I was delighted to see it described in this book. For the average reader, this book will make you expert enough in systems thinking to be much more successful with your decisions. If you feel that you would like more help in this area, please read The Fifth Discipline Fieldbook. It is a very helpful companion book that will give you practical advice for implementing what you learn in this book. If you have colleagues or friends who often make decisions that do not turn out well, it may be because they do not understand how to think about business as a system. Give them this book, and you will have done the person a great favor. Follow-up by discussing what they have learned, and help them with an exercise or two from the Fieldbook. You'll be glad you did. If you decide from reading The Fifth Discipline that you want to establish and maintain a learning organization, you must read The Dance of Change, which is remarkably good at helping you sustain improvements in your organization. For your personal decision-making, I also recommend Smart Choices.