A trader is someone who buys and sells goods, services, or financial assets to make a profit. They can work in various markets, such as stocks, commodities, or currencies. Traders analyze market trends and use strategies to decide when to buy or sell, aiming to maximize their earnings. There are different types of traders, including day traders who make quick trades within a single day, and long-term traders who hold onto their investments for months or years. Successful traders often rely on tools like charts and market news to inform their decisions, making trading both an art and a science.