This short book cuts through the confusion. It explains: 1. The pros and cons of using standards to improve sustainability performance 2. The variety of standards out there 3. A map showing how some of the most prominent sustainability standards relate to each other 4. A decision tree to help with choosing the type of standard that will be most helpful to you 5. For some of the most influential standards, a thumbnail description of what they are actually about 6. Some tips for putting standards into practice.