Contact

One address, three errands. Say which one you are on and it gets handled faster.

[email protected] — read by a person, not a ticketing system. There is no expected response time to promise honestly, so none is claimed here.

A correction, or a source we missed

The fastest route. Include the page and, if you have one, the primary source — corrections get logged in the revision log rather than applied quietly.

Email a correction

Discussion of a chapter

Public, and usually faster than email, because other readers can answer. Every chapter has its own forum.

Browse the forums

Account or data deletion

Email from the address on the account. See the privacy policy for what is stored and what deletion removes.

Read the privacy policy

What this address is not for

There is no newsletter to unsubscribe from, no advertising inventory, and no guest posts. The manual is not affiliated with any AI lab, government body, or standards organization, and takes no funding from any of them — see about this manual.