It's all right there, man.
Explaining Knight Attacks.

As someone with visual problems I did this topic a while ago:
https://www.chess.com/forum/view/general/i-dont-understand-how-the-knight-moves-and-need-advice
A lot of people say its an L shape but for me that just confuses me, I always visual this image to remember how it moves to better formulate attacks:
I have been trying to explain knight attack patterns to my friend, I found the perfect video:-