/technologies/businessofengineering/b/blog/posts/3-self-taught-innovators-who-are-making-a-differenceIs there any substitute for professional training? Looking at the achievements of decorated innovators like Elon Musk, Steve Wozniak and Marissa Mayer, you might not think so. But in local communities it's often the self-taught engineers and ma...en-USTelligent Community 12