[b]"What's the Difference Between a Private IP Address vs Public? Need Help Understanding!"[/b] or [b]"Private IP

Not an expert, but here’s how I see it:

Public IP = your Facebook profile (everyone sees it).
Private IP = your drafts folder (only you see it).

Your router’s job is to post the right stuff from your drafts (private IP) to Facebook (public IP). NAT makes this happen.

And yeah, IPv4 addresses are limited, so private IPs save the day. If you’re curious, play with your router’s admin page (usually 192.168.1.1) to see how it assigns private IPs.