A clear place to start.
A useful skill to take away.
Explore the fundamentals, follow an example and put your understanding to the test. Every guide is free to read, with no login needed.
50 published guides · Worked examples · Explained practice answers
Databases
Understand how data is organised, queried and protected. Start with tables and SQL, then explore joins, indexes, transactions and reliable recovery.
Developer tools
Use the everyday tools behind a dependable development workflow. Learn version control, debugging, dependency management, automation and observability.
Education & language
Improve how you learn, communicate and explain your work. Practise clear English, technical reading, interviews and professional writing with concrete exercises.
Programming & technology
Build a solid foundation in programming, web development, algorithms and secure software. Work through small examples before moving into the interactive Learn studio.
Trading & finance
Learn financial vocabulary, arithmetic and risk through fictional examples. Explore budgeting, interest, market mechanics and fraud awareness without trading signals or product recommendations.