Contact

Email [email protected].

Especially welcome:

• Corrections. If a number, date or claim is wrong, please say where, and if you can, cite a source. Corrections are made in public in the site’s source repository.
• Practitioner perspectives. If you navigate, or teach navigation, in any tradition described here, your view of how it is presented matters more than anyone’s.
• Teaching. Every figure has a Share button that links to its exact state. If you would like a particular preset for a class, ask.

Bug reports and code contributions can also go to the source repository.