What is the difference between a forester and a logger?

Question: 
What is the difference between a forester and a logger?
Answer: 

A forester is a professional with a college level education and experience in a broad range of forest-related topics including forest and wildlife ecology, economics, legal issues and the growing and harvesting of forest products. Foresters in Massachusetts are required to hold a state license which is generally based on experience, training, and ongoing continuing education. There are two types of private foresters - Industrial and consulting - that can help you manage your woods and sell timber. Like an architect designing a building, a forester designs the harvest plan.

A timber harvester, or logger, is in the business of cutting down trees, cutting them into logs, removing the logs from the woods to the roadside and transporting the logs to the sawmill. They are usually in business independently or may be in the employment of a sawmill. Timber Harvesters in Massachusetts are required to hold a state license which is based on passing a written exam of relevant laws and must participate in ongoing continuing education. A licensed timber harvester is required on all harvests which have a cutting plan. Like a builder following the architect's design, a timber harvester implements the harvest plan.

Additional Resources:
Choosing someone to work with when harvesting timber - Pros and Cons 
Foresters and the Care of Your Land: How to select one and what they do