OpenTezos is a complete encyclopedia of Tezos, with more than 700 pages. Depending on your interests, you may not want to read everything. Here you can select a profile and be guided toward the only modules on that path.
Modules in path
What is a blockchain and how it works.
What is Tezos and how it works.
How to deploy your own Tezos node.
Learn to use and interact with a Tezos explorer.
Learn the basics of the SmartPy smart contract language.
Learn the basics of the LIGO smart contract language.
Learn the basics of the native Tezos smart contract language.
Everything you need to build your first Tezos Dapp.
What is baking and how it works.
How to deploy your own bakers.
Automated market maker, stablecoins, flash loans, synthetics, etc.
Introduction to the concepts of formal verifications.
Create your own private Tezos network.
Contribute to the Tezos ecosystem.