The best way to get better at chess is to do tactics. So here, I will show you how to create tactics. I will break them down into their parts and help you to improve.

Simple tactics:

Deflection

This is a simple motif for deflection: The rook attacking the far-advanced pawn is deflected from it's post, guarding the pawn's promotion.

 Now, here is the same theme, just with different pieces and a different situation.

However, if Black is awake, he might find a problem with that last tactic. Just one pawn is in a different position, and suddenly he is a rook up!

This just goes to show, you can't be too careful when playing tactics!