[Blockchain] is the biggest opportunity set we can think of over the next decade or so. - Bob Greifeld, Nasdaq Chief Executive

Hello there!

You are about to learn what blockchain is and get a quick understanding of the technology behind Bitcoin, Crypto, NFT, and Web3.

This guide is intended for those who want to start a career in blockchain, bitcoin, and Web3. Don't worry if this is your first time hearing the term "blockchain". By the end of this guide you should be comfortable with the term "blockchain" and get a good overview of what it is.

You may have heard of Bitcoin. Bitcoin is the first and most popular cryptocurrency in the world.

Blockchain is the technology behind Bitcoin. But Bitcoin is not the only blockchain platform. Ethereum, Solana, and Polkadot are some of the popular blockchain platforms out there.

However, to effectively introduce blockchain, we have to explain why Bitcoin was created. Learning about Bitcoin is foundational in learning about blockchain.

Let's start from the begining.

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