How it works
The order book shows bids from buyers and asks from sellers. Market depth and order size can affect how easy it is to trade without moving the price.
Why it matters
Order books help explain liquidity, spreads, slippage and the difference between market and limit orders.
Common mistake
Do not treat Order book in crypto as a universal rule. Exchanges, wallets and card apps may use the same term differently, especially around limits, fees, networks and account restrictions.
User action
Before relying on this term, check the provider's official help page, fee schedule or product terms. If funds are involved, test with a small amount first and keep a record of the transaction or setting.
Related pages
Compare exchanges or read about liquidity and slippage.
How to use this term
Use order-book data to understand where buyers and sellers are waiting.
What to check
Check bid-ask spread, depth near the current price and whether your order size could move the market.