Some call it seeing a glass half-full, rather than a glass half-empty. Other call it being optimistic or always looks for the silver lining. These all express the same thing -- looking at the positive of the situation as a way to motivate, engage, succeed.

In my mind, one of the myths of management is that you have to be tough all the time, another point the authors dispute. And we've all heard you won’t succeed if your team likes you.

I’m glad to see that there are notable examples of using positivity to drive success.