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Privacy Policy

Last updated November 7, 2026

This site is a simple page about one book. It does not use accounts, ads or tracking cookies of its own.

Buying

Orders are processed by Gumroad, the merchant of record. When you pre-order, Gumroad collects your name, email and payment details under its own privacy policy (gumroad.com/privacy). We receive your name and email so we can deliver the book and answer your questions. We never see your card number.

Email

We use your email only to deliver the book, its updates and replies to you. You can unsubscribe from any email at any time.

Questions

Reply to your Gumroad receipt and we will help.