Contact
Corrections to the figures are the most useful thing you can send.
The best way to reach the Ledger is by email:
One person reads this, so a reply may take a few days. Everything gets read.
What is worth writing about
Corrections to the data
This is the most valuable kind of message. If a rate, percentage or country figure is wrong, out of date, or attributed to a source that does not actually support it, please say so — and if you can, point to the dataset or publication that has it right. Confirmed corrections are applied and noted on the methodology page.
Sources you think are unsound
Several figures in the Bizarre & Rare section are openly flagged as folklore. If you believe others should be flagged too — or that one currently flagged as apocryphal is in fact well-evidenced — that is a useful argument to receive.
Accessibility problems
If any part of the site is unusable with a screen reader, a keyboard, or reduced-motion settings enabled, that is treated as a defect rather than a preference. Please describe what you were using and what happened.
Press and permissions
Enquiries about writing about the project, or about reusing anything from it, are welcome at the same address.
What this address cannot help with
The Ledger cannot answer medical questions. It is a statistics visualisation built by someone with no clinical training, and nothing on it — including the novelty calculator — constitutes medical advice, diagnosis, prognosis, or a risk assessment. If you are worried about your health, please speak to a doctor or another qualified professional rather than to this site.
If you are in distress, this address is not a crisis service and is not monitored around the clock. Free, confidential help is available now: findahelpline.com will find a support line in your country.
Privacy
Emails sent to the address above are used only to answer the message they arrive in. They are not added to any mailing list and are not shared. See the privacy policy for how the site itself handles data — the short version is that it collects none.