As a way to purchase and selling cryptocurrencies and also other digital assets, the most common way is to transact with Crypto Exchanges. Cryptocurrency exchanges are privately-owned platforms that facilitate the trading of cryptocurrencies for other crypto assets, including digital and fiat currencies and NFTs.

Key Highlights
The most frequent way of transacting in cryptocurrencies along with other digital assets is via a Cryptocurrency Exchange.
You'll find Centralized and Decentralized Cryptocurrency Exchanges, every offers pros and cons.
Centralized Cryptocurrency Exchanges (“CEX”)
Centralized cryptocurrency exchanges work as a middle man from a buyer along with a seller and earn money through commissions and transaction fees. Imaginable a CEX to get much like a stock exchange nevertheless for digital assets.
Similar to stock trading websites or apps, these exchanges allow cryptocurrency investors to purchase and sell digital assets on the prevailing price, called spot, or to leave orders that will get executed when the asset extends to the investor’s desired price target, called limit orders.
CEXs operate using an order book system, which means that buy and sell orders are listed and sorted through the intended buy or sell price. The matching engine from the exchange then matches sellers and buyers in line with the best executable price due to the desired lot size. Hence, a digital asset’s price depends on the supply and need for that asset versus another, may it be fiat currency or cryptocurrency.
CEXs decide which digital asset it's going to allow trading in, which supplies a tiny way of measuring comfort that unscrupulous digital assets could possibly be excluded through the CEX.
Decentralized Cryptocurrency Exchanges (“DEX”)
A decentralized exchange is another sort of exchange that permits peer-to-peer transactions from your digital wallet without going through a middleman.
These decentralized exchanges count on smart contracts, self-executing items of code on the blockchain. These smart contracts enable more privacy much less slippage (another term for transaction costs) than a centralized cryptocurrency exchange.
Conversely, though smart contracts are rules-based, deficiency of an intermediary vacation signifies that the person remains to their own, so DEXs are designed for sophisticated investors.
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