free course · English and Polish
Poland, read from the data
A free course on an interactive map and charts, with a source for every number.
Read Poland on an interactive map and in charts, one chapter at a time. Every number names its public source.
- Level
- Beginner
- Length
- Self-paced
- Topics
- 48in 12 lessons
Poland, measured: a map and charts. A slow loop through: 1.6 million power stations on Polish roofs; 5,466 km of motorways and expressways; Europe picks up its parcels from a Polish box; Gas storage is 99% full. © 2026 Mateusz Wojczal. Code: MIT. Text and data: CC BY 4.0. Map: Natural Earth (public domain) through world-atlas (ISC). Fonts: Barlow, Barlow Semi Condensed, JetBrains Mono (SIL OFL 1.1). Every figure links to the institution that published it.
How it works
Map, charts, quizzes
Read the story, then test it against the numbers.
A map you can move around
Pan across the country and switch between layers of data.
Charts you can read
Time series with their sources next to them and a text version of each.
Quizzes on the numbers
Short questions after each chapter, with the answer explained.
Contents
An atlas of chapters
Each chapter has a map or chart, a short text and a quiz.
12 lessons · 48 topics · about 6 h of material
Finish
Sources and licence
Where every figure comes from, the licence of the course text and how to reuse it.
In the course
Free, bilingual, certified
Open to everyone in this demo.
Badge 1
Free
No payment and no card.
Badge 2
English and Polish
Two courses, each written in its own language.
Badge 3
Certificate
A certificate when you finish a course.
Sources
Every figure has a publisher
Footnote-style citations name the institution behind each number.
Official public statistics
Every chart and map layer names its source
Footnotes in the lesson text link to the data
Course text is licensed CC BY 4.0, and the last lesson lists every source
Questions
Before you start
Is the course free?
Yes. Every chapter, quiz and the certificate are free.
Where do the numbers come from?
From public statistics. Each figure in a lesson carries a numbered source you can open.
Is there a Polish version?
A Polish course, "Polska w liczbach", is planned as a separate course with its own lessons.