This site is a single page describing one book. It sets no cookies of its own, runs no analytics, and builds no profile of you.
Typefaces are served by Google Fonts, which receives your IP address as part of that request. Everything else — text, images, styles — is served from this domain.
One entry in your browser’s local storage records that the one-time welcome message has been shown, so that it is not shown again. It contains no personal information and never leaves your device. Clearing your browser data removes it.
Checkout happens on Gumroad, not here. Your name, email address and payment details are handled by Gumroad under its own privacy policy, and payment card details are never seen by this site or by me. I receive only the order record Gumroad shows a seller, which is used to deliver the book and to answer you if you write.
Write to me through the channel and I will answer. See Contact.
Last updated 18 August 2026 · Abuela Rosa, Puebla, México