Documentation/in depth resources

• Ethereum whitepaper/yellowpaper are a must read if you want to get into smart contract development on the EVM. The white paper is a very easy read, the yellow paper is much more technical. I’d recommend skimming through the yellow paper, to have an idea of what is in it, and then refer to it as you get more comfortable with Solidity/EVM. Once you start needing to know the specifics of EVM opcodes or gas usage for different calls you will probably check out the yellow paper quite often.
• Ethereum developer documentation
• Solidity docs
• Ethers.js docs it is very likely you will need to interact with your smart contracts with JS, and ethers.js is a good library (and very popular) to do so. web3.js is another alternative.
• Open Zeppelin’s “Learn” is full of resources from OpenZeppelin
• Ethereum Smart Contract Security Best Practices

Books

• Hands-On Smart Contract Development with Solidity and Ethereum (O’Reiley) - this is a good introduction. If you find you learn better from books than online resources this is a good start

Courses

I haven’t bought any Solidity courses, so cannot comment on the best ones.

Interactive challenges

I’m not really sure what to call these, but there are some sites that set out programming challenges and to progress through the ‘levels’ you have to complete the challenges.

• CryptoZombies probably the best beginner/intro to Solidity. If you have not written Solidity before, check this out.
• Open Zeppelin’s Ethernaut teaches you important solidity security best practices via a range of security challenges
• https://capturetheether.com/
• https://www.damnvulnerabledefi.xyz/
• For more see my page on EVM and Solidity games/challenges/puzzles

Youtube Channels

I find most youtube content about smart contract development to be quite low quality or a bit too outdated, but here are a few channels that I find quite useful.

See the list of best Youtube Channels to learn smart contract development here.

Podcasts

Podcasts are not really great for learning programming topics in my opinion, as its often quite hard to imagine what is being discussed as code. However I found the blockchain industry moves very fast and it helps a lot to keep up to date with some of the technical news and updates

The main podcast I would recommend is the Zero Knowledge Podcast. It focuses just on the technical parts of blockchains (with a very strong focus on zero knowledge.

Newsletters

• Week in Ethereum News

Tools

• Solidity visual auditor
• HardHat
• Mythril by ConsenSys - security analysis tool for EVM bytecode
• Scaffold
• Remix

Other cool links to help with learning Solidity

• Smart contract wizard
• Zeppelin Guides
• [Koios]https://koios.world/
• Solidity docs
• Vyper docs)
• Best Solidity links
• SWC
• CaptureTheEther

Spotted a typo or have a suggestion to make this crypto dev article better? Please let me know!