Get in touch
Reader mail, press enquiries, translation and rights questions all reach the same inbox. It's read by a person, though not always quickly.
If you're writing about something in a book, mentioning the chapter helps. If you've found an error — a misattributed quotation, a broken citation, a translation that doesn't hold up — please say so plainly. Corrections are welcome and get made.
One thing this inbox can't do
It can't give personal advice about a mental-health situation. The books are philosophy, not treatment, and no email exchange is a substitute for talking to someone qualified. If anxiety, compulsive behavior, depression, trauma, or lost sleep is interfering with daily life, that's worth taking to a professional rather than to an author.