Leaders:
Look to the future and the 'bigger picture'.
Have a vision of the future and where the business should be going.
Are followed by others.
Are happy to change things.
Motivate others to act in a particular way.
Managers:
Focus on the present.
Implement things - get things done.
Plan.
Control.
Organize.
Direct.
The difference is important; however, some people possess both leadership and management skills.