Every time we make a choice, our minds go through an elaborate process most of us never even notice. We’re influenced by subtle aspects of the way the choice is presented that often make the difference between a good decision and a bad one. To overcome the common faults in our decision-making and enable better choices in any situation involves conscious and intentional decision design. This book offers a comprehensive, systematic guide to creating effective choice architectures, the environments in which we make decisions. The designers of decisions need to consider all the elements involved in presenting a choice: how many options to offer, how to present those options, how to account for our natural cognitive shortcuts, and much more. These levers are unappreciated, yet they impact our reasoning every day. This book shows us that good decision-making can be both moral and effective.