The image below represents the design of a typical candlestick.
There are 3 specific points: Open, Close & Wick that are used in the creation of a price candle.
The first points to consider are the candles open and close prices. These points identify where price began and ended for a selected period and will create the body of a candle. It is important to note the color of the body of a candlestick (red for down and green for up). With this, candlesticks can help to quickly identify if the market is trading higher or lower for a selected period.
Next are the wicks of the candlesticks, also be referred to as shadows. These are vital points that show the extremes in price for a specific charting period. Wicks are easily identifiable as they appear visually thinner than the body of the candlestick.