DATA SKILLS. REAL POSSIBILITIES.

Make sense of data.
Build your next step.

I'm Kajo. I help people turn curiosity about data into practical skills — and a career they want to build.

I started in customer service, learned Excel and SQL, and worked my way into data analytics and architecture. Now I share what I've learned.

English articles. Polish courses, newsletter and community.

YOUR DATA TOOLKIT

LEARN SOMETHING. TRY IT OUT.

Start with a question.

A tool to understand, a query to write, a next step to figure out. Find your starting point here.

Practical guides to data analytics, working with tools and finding your way into a data career.

Open the knowledge base for an Excel function, a SQL pattern or a Python example you can work through.

Put your analytical skills to work. Head to KajoDataGym and take on a data challenge.

KAJODATASPACE · IN POLISH

Learn through courses, join webinars and ask questions in a private Discord community. KajoDataSpace brings learning and support together.

My courses, community and newsletter are in Polish. You'll find the full offer on the Polish site.