What is content marketing? Basics of content marketing

In response to my changed title on Linkedin, I get emails from them with questions like “What is content marketing?” , “How do we use it for our business?”, “Why does my company need to pay attention to content marketing?” and so on and so forth.

I thought quick intros to all these real time concepts could help startups and firms equip their own content departments or could employ me to set that up! Here is the first one: