A price chart is made of candles. Each candle shows what price did during a slice of time: one minute, one hour, one day. Once you can read one candle, you can read any chart.
A candle has a body and two thin wicks. The body spans the open and the close. If price closed higher than it opened, the candle is green (up). If it closed lower, it is red (down).
The wicks show how far price pushed before coming back. A long upper wick means buyers pushed high but sellers took over. A long lower wick means sellers pushed low but buyers stepped in.
Green = closed up, red = closed down. Body = open to close. Wicks = the extremes price reached and rejected.
Tip. Long wicks are stories about who won the fight. A long lower wick at a low can be the first sign buyers are defending a level.