When a consumer turns over a food package, a well-designed label provides some core facts about the ingredients inside. In a car lot, every vehicle posts key data in the window, allowing for fast and easy comparisons. No such thing exists in health care to simplify decision-making. Indeed, the explosion of medical knowledge, the increasing specialization of the field, and the expanding volume of available data make it ever harder. If we want patients to understand their options and make informed choices, we need ways to manage the available information. What tools can help patients understand their options and act in their own best interest?