This is a picture of a Japanese Candlestick. It represents the price over a period of time. For example, this could be a 10 minute candle, or a 1 hour candle, or even a 1 month candle.
Let’s say this is a one hour candle. It represents the time from 8 AM to 9 AM. The price at 8 AM is called the Open price. The price at 9 AM is called the Close price.
During the time between 8 AM and 9 AM, the prices go up and down. The highest price between 8 AM and 9 AM is called the High Price. The lowest price between 8 AM and 9 AM is called the Low Price.
The area between the Open and Close is called the Body. The thin lines above and below the body are called Wicks.
A Japanese Candlestick tells us a story about the price during a period of time.