The superpower of self-awareness, and how to get it

It’s not often considered to be one of life’s superpowers. But you can’t be a good spouse, friend, employee, team player or leader without it. Leadership coach Reggie McNeal says it is the most valuable skill in a leader’s toolkit. Marriages can’t thrive in its absence. Friendships blossom in its abundance.

So what is it, and how do you get – or should I say – grow it?