Learning option trading means understanding what options are. Options are commonly known as "derivatives" because the Options market is a market which is "derived" from another market.
The most commonly known options are derivatives of the share market, but you can also have options on commodity futures such as gold, silver, sugar, wheat or pork bellies, or on other financial instruments such as currencies. The market is based purely on supply and demand, which means the prices rise and fall according to market sentiment.
Whether we are talking about shares, commodities or currencies, these upward or downward trends can be tracked on charts. It is a true saying that "a picture paints a thousand words" and in the same way, charts can give us a visual representation of the movements in price, in a way that no amount of tabulated data can. Charts are our best friend if learning option trading is our goal, because they help us to decide when to buy or sell, or what strategy to employ.