Some members of our latest list of young innovators from around the world have developed consumer Web services you might have used, such as Spotify or Dropbox. Others are making more fundamental breakthroughs that have yet to be commercialized, such as more efficient engines or improvements in optical communications. And a few are blazing trails in fields that didn’t exist before, like pop-up fabrication of tiny machines, or cameras that can see around corners. But all 35 of them have something significant in common: their work is likely to be influential for a very long time. We hope that these stories about them surprise and inspire you. —The Editors