If you appreciated the Street Design Manual, then you'll likely value the information included in The Active Design Guidelines. This free resource offers "strategies for creating healthier buildings, streets and urban spaces, based on the latest academic research and best practices in the field." If the 19th and early 20th centuries were focused on cholera and tuberculosis, the 21st century is focused on obesity (and its related diseases). The guide offers a framework for urban and building design strategies that will promote physical activity and health. While targeted to architects and urban designers in New York, the entire design community will benefit from the research included in this document.