Privacy Policy
Last updated: September 2026
What we collect
If you subscribe to our email list, we collect your email address. That’s it.
We do not sell, share, or rent your email address to anyone.
We use our email service provider to send the Problem Deconstruction Worksheet and occasional articles about first-principles thinking. You can unsubscribe at any time using the link in every email.
Analytics
We may use privacy-friendly analytics (such as Plausible or Umami) that do not use cookies, do not track you across sites, and do not collect personal information. No data is shared with third parties.
Amazon links
Links to Amazon are direct product links. We may use Amazon Associates tracking tags in the future and will update this policy if we do.
Contact
If you have questions about this policy, email us at the address listed on the About page.
Changes
We may update this policy occasionally. The “last updated” date at the top reflects the most recent revision.