Remember when you first learned how to play no-limit hold'em? What were the very first examples of strategy you learned?
After learning the rules and order of play, probably one of the first elements of the game you learned had to do with starting hand values. You learned how...
- , , , and were best,
- , , , were pretty good,
- , , were sometimes playable,
- and , , and similar hands were junk.
From there you probably learned about the importance of position, bet sizing and pot odds, and other ideas related to postflop strategy.