A Candle stick provides us with information on price action for a stock for the time frame that is being watched. We learn the high of the period the low of the period the open of the period and the close. The center of the candle is the body. The lines above the candle are known as the wicks or shadows. Candle sticks can for patterns on charts and can identify support and resistance on a chart.
Example of chart with moving averages, VWAP and candlesticks