The Basics of Power
Read this section, which addresses the meaning of power. Power ultimately can be considered to be one's ability to influence others, a skill that all managers need to possess, regardless of their level of management within an organization. It also discusses the consequences of power as managers use it.
Click http://saylordotorg.github.io/text_organizational-behavior-v1.1/s17-02-the-basics-of-power.html link to open resource.