Check this first! The most popular questions and solutions to current issues.
About accounts, wallets, and understanding Polkadot
How to contribute to the Polkadot network with your stake and get rewarded for it
Everything you should know about how to use Ledger on Polkadot and Kusama!
Common error messages, what they mean, and how to solve them.
How to participate in Crowdloans through the Polkadot-JS UI
Tips and tricks and other things that are good to know