> For the complete documentation index, see [llms.txt](https://docs.supercharged.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.supercharged.io/prediction-market/how-does-it-works/order-book-basics.md). # Order Book basics ### **What is an Order Book?** An order book is a list of all the buy and sell orders for a particular market. It lets traders specify the price they’re willing to pay (or accept) and the number of shares they want to trade. This feature is transformational because it offers a structured way to match trades and provides transparency into market depth ### Viewing the Order Book * Sell orders are standing offers to sell shares. You can immediately match with that offer to purchase shares. * Buy orders are standing offers to buy shares. You can provide your own "resting" offer to buy at the same price. * **Spread** is the difference between the highest Sell and the lowest Buy price.

### **Market** Placed immediately at the best available prices. Perfect when you don't care about setting exact prices.

### **Make a Limit Order** Limit orders only trigger if the market hits your set price. **Step 1: Set Your Price:** Enter the price at which you are willing to buy (or sell, if you’ve selected to sell) shares. **Step 2: Specify Quantity**: Enter the number of shares you want to buy or sell at that price. **Step 3: Place Your Order**: Click ‘Buy’ to submit your order.

### Cancel Order If your order is still waiting to be matched and you no longer wish to proceed, you can cancel the order at any time without incurring any fees.