Anatomy of a Candlestick
Every candlestick has 4 data points: Open (where price started), Close (where price ended), High (highest point reached) and Low (lowest point reached).
Green/White candle: Close is ABOVE open — buyers won (bullish)
Red/Black candle: Close is BELOW open — sellers won (bearish)
The body is the rectangle between open and close. The wicks (shadows) extend to the high and low.