Seth Godin, a real wise guy, is also a very generous guy.
His April 19, 2018 post provides a link to his Unleashing the Ideavirus . (I realize ‘virus’ is an unwelcome word since last March, but hey, let’s look at it in a different context.)
And if you’re short of time, here is a summary of the book.
Enjoy. Hope you learn a little…or a lot.