Recently, I’ve noticed many young people becoming curious about DeFi but feeling overwhelmed by a bunch of confusing terminology. Today, I want to explain two basic concepts that everyone participating in DeFi must know: what is a pool and what is an LP. If you understand these two things clearly, you’ll grasp the core of how DeFi operates.

Let’s start with the pool. A pool (, also called a liquidity pool, is a collection of cryptocurrency assets locked by a smart contract on the blockchain. It’s not controlled by any company; it’s just a piece of code that runs automatically on the network. When you ask what a pool is, it’s that — an “automated trader” that requires no human intervention.

Liquidity pools are the heart of every decentralized exchange )DEX( and many other DeFi applications. Instead of trading with a real person, you trade directly with the assets in the pool. For example, if you want to swap ETH for USDC, you don’t find someone who wants to sell USDC; the pool automatically does that for you.

Pools operate based on a mathematical formula )Uniswap uses the formula X * Y = K(. This formula automatically calculates the exchange rate between two assets. If you want to understand what a pool is in practice, imagine it as a vending machine — but instead of selling snacks, it exchanges cryptocurrencies.

Now, let’s talk about LP — Liquidity Provider. LPs are the people who deposit their funds into the pool to keep it running. They usually deposit two tokens of equal value )for example: 1 ETH and 2000 USDC( into the same pool. And what is a pool without money? It’s the LPs who supply the assets for the pool.

When LPs deposit funds into the pool, they provide the necessary liquidity depth so others can trade. In return, they earn a fee from each transaction that occurs within the pool. That’s the main incentive for people to become LPs.

The relationship between them is simple: LPs put money into the pool, the pool uses that money to provide automated trading services for everyone, and LPs earn profits from it. Understanding this mechanism is the first step to participating in DeFi intelligently.