Our Approach to Chart Sourcing

At Chart-Ed, we believe that good questions begin with good data. Every chart we use—whether for building student questions, classroom prompts, or engaging activities—is selected with care. But just as important as the chart itself is our responsible and transparent use of it.

We prioritize charts that:

• •Are licensed for classroom and commercial reuse, with the specific permissions and restrictions of each source respected.
• •Come from trusted organizations, including government agencies, NGOs, and open-data publishers.
• •Can be used commercially and educationally, often with attribution and sometimes only without alteration.

Some of our charts come from sources like Statista, where CC BY-ND licensing permits commercial reuse of the original chart with attribution but does not permit us to distribute modified versions of the chart. Others are from public repositories where both the chart and underlying data may be open to interpretation, remixing, or adaptation.

Where possible, we also provide a snapshot of the license or usage terms, to ensure you can trust how the data is being handled. All logos and images used below are for reference only and are linked back to the source site for clarity.