In this issue: Spiral Hegira: PAX Scientific's Curving Path to Clearing the Air by Tom McKeag, Hiding in Full View by Adelheid Fischer, Portfolio by Rob Kesseler, Growing the Business of Bio-inspired Design in the Empire State by Tom McKeag Interviews with Brent Constantz and Anamarije Frankic, and Framing Your Problem with the Bio-Design Cube by Tom McKeag.