Neil Kokemuller

Leaders don't just take the role of executives and CEOs (though they are those, too) -- there are plenty of examples in every aspect of your life.

Centralized authority in a business concentrates power within a small group, which can make other workers resistant to change, and more.

Chances are you've seen plenty of competitive advertising, even if you didn't recognize it at the time. Here are a few famous examples.

Building effective relationships is key for human resources professionals, and empathy, stress management and conflict resolution are also important.