If you want to know more about using Facebook for business or personal use, then try the link below.  There are about 35 different sections on how to use Facebook and what it can do for you and your business.  I have gone through about 19 sections so far and have learned a good bit.  You can do this at your own pace and take your time.  You can skip sections that may not interest you.

KEY WORD is FREE!

https://www.udemy.com/introduction-to-facebook-for-businesses-and-organizations/#/