Free courses for the skills employers ask for

Short hands-on lessons you can finish in about two minutes each. Practice on real tasks, get instant feedback, and earn a verified certificate.

Data Analysis & SQL

Practice real SQL queries in your browser, from your first SELECT to JOINs, CTEs and window functions.

19 lessons. Beginners who want a job-ready data skill, and analysts who want to fill gaps.

Write clear prompts, check AI answers, protect against prompt injection and build reliable AI workflows.

19 lessons. Anyone who uses AI tools at work and wants better, safer results.

Spot phishing, protect accounts, handle suspicious logs and respond to incidents the way a security team does.

17 lessons. Staff, students and new IT or security team members.