Originally Posted by lawrelye
I still haven't learned about bet sizing
bet sizes should nearly always be related to the size of the pot. About pot sized preflop, between half pot and full pot size on postflop streets.
Consider the simple case where you're heads up post flop.
If you bet half pot and 1 villain calls, the pot gets twice bigger from one street to the next.
If you bet full pot and 1 villain calls, the pot gets 3 times bigger from one street to the next.
Over three streets, flop, turn and river, you can therefore multiply the preflop pot between 8 and 27 times by betting between 1/2 and 1 pot on each street. That's a wide enough range in most practical cases.