Basic strategy is an awesome tool for blackjack players. Playing it perfectly can lower the house edge from 2-5% to 0.5%. But you must play it perfectly for the house edge to come down.
Playing perfect basic strategy means playing every single one of your hands according to what the chart says. No deviating no matter what your brain is telling you. And while it is perfectly legal to carry a basic strategy chart with you into a casino or use one online, the quality of your blackjack games can improve if you can play without the chart.
There are a few ways that you can learn basic strategy so that you don