How can I make a 3rd person Cam on a character and Cam

For example like this-----

can someone make a test blend of this. I much of a more visual learner not a reader sorry. But thank you if you do help. I just want to Make a camera and a caracter like this one then go on from there after I know how to do this… on the video example.

You might ask the author of the video. It shows Blender too.