In this issue you’ll find:

• Things you can’t see, including X-ray waves, vibes and that mysterious place called “the internet”
• Things you don’t see, such as the secret life of trash and the complicated, high-stakes work of air traffic controllers
• Things you’re not supposed to see, including the marketing tricks companies play on you
• Things that warrant a closer look, including America’s invisible workforce and what’s actually going on when you feel invisible