A great look at what it takes to be a great product owner and leader:

I’ve spent a lot of time trying to figure out a way to communicate the value of a product manager in a way that both transparently tells cross-functional partners what they should expect (or demand) from their product leaders, and also communicates to new product managers what the actual expectations of their job are.  Over the years, I reduced that communication to just three sets of responsibilities: Strategy, Prioritization & Execution.