VG personally handles all inquiries. The best way to reach him is his email address. Only as a backup, use VG’s cell phone: 603-289-0007.
Take a look at the following figure, and then consider the questions below.
How many squares are there in this picture?
How did you arrive at this number?
What connection (if any) do you see between this exercise and breakthrough innovation?
Read the entire post at Harvard Business Review>>