Free Resources

Practical cheat sheets, roadmaps, and exercises for Python, data science, SQL, and AI — free to use, built for learners who want clarity over noise.

Python Cheat Sheet for Beginners

Variables, loops, functions, lists, dictionaries — one page you can keep open while you code.

A practical path from fundamentals to portfolio — what to learn, in what order, and what to skip.

SELECT, JOIN, GROUP BY, and the patterns you use in real analysis.

Download a resource, keep it beside your editor, and pair it with the related tutorials on Techtonz. New sheets and roadmaps are added regularly.