4 Types of Knowledge

Declarative Knowledge:

• Factual: Facts & concepts. This information can and must be learned through exposure & repetition. This includes the basics about an industry or job.
• Conceptual: Related to factual knowledge, conceptual knowledge can be understood as knowing the interrelationships between elements that make up a larger structure. 

And:

• Procedural Knowledge: how to accomplish something. It can be stolen through imitation and practice!
• Metacognitive Knowledge: what you learn about learning. For example, one may realize a particular strategy is not working & try something else.