Order types are instructions traders give to brokers or platforms for buying or selling assets. The most common is a Market Order, which executes immediately at the current price. A Limit Order sets a specific price at which to buy or sell, ensuring price control. A Stop Order triggers a market order when a certain price is hit. Stop-Limit Orders combine both stop and limit features. Trailing Stops move with market prices to protect profits. Understanding these types is key to managing risk, timing, and strategy effectively in trading. Choose wisely based on your goals and market conditions.