Because price action trading is a systematic approach that uses technical analysis, recent price history, and some subjective input from the trader learning it is mostly a matter of trading and developing your own price action systems. As a foundation the trader will want to be well-versed in technical analysis, especially support and resistance levels. Learning different methods for identifying trends is also quite important to the price action trader. There are also some common patterns that price action traders use, such as pin bars and inside or outside bars.