Week 6: Facebook

I believe that post reach is sponsoring or advertising a specific post to try to reach it out to others and get the word out, I think post engagement is trying to get a specific group of people, your friends, or others who like your page, to engage with the post, talk about it, like it, write to you, and share with others.
I think understanding the difference between the two is important because, one is trying to reach out to others who might not know about you yet, and gaining more followers, while the other is keeping the ones you already have and continuing to grow a bond with them.
I think Facebook insights is very important because it shows you what your followers enjoy the most from your posts. To keep your following, and to grow it you have to keep people coming back and continuing wanting to see your posts.