We all have ideas.

Hopefully.

But how do you generate an idea? 

How do you evaluate an idea? 

How do you classify an idea? 

How do you politely and constructively reject an idea?

How do you improve an idea?

How do you sell an idea?

We think about this a lot because we think about ideas a lot.

So here are some theories and practical approaches that might help you think about how you think about ideas.