Concepts, how to extract them?

I'd like to know if someone can help me on how to extract concepts.

Mr De Bono says they breed ideas, and they are one of the key components in (for example) having a beautiful mind.

On the other hand, concepts are not definitions, neither practical ideas.

What would be the concept of the Human Hair (head) for example. Could something like our hair have a concept?

do concepts have anything to do with function?

for example a so-called "concept-car" is that so or is just a fancy name?

I suspect that once created the habit of identifying concepts, I would be able to see a concept in almost everything I could see.

please let me know your thoughts

best

Enrique Sanguino