Privacy, without the fog.

1. What this site collects by itself

Nothing that identifies you. There is no analytics, no advertising pixel, no tracking script, no account, and no cookie beyond what your browser does on its own. Pages are static files served as they are. Your language, your font settings and your screen size stay in your browser.

2. What the payment provider collects

When you buy, the checkout is hosted by our payment provider. It collects your email address (to send the files), your payment details and, depending on the method, a phone number. That data is processed by the provider under its own privacy policy; we receive the order record and the email address, never your card number.

3. What we keep, and where

We keep the order record — date, title, amount, email — for accounting and to replace a lost file. Nothing else. It is not sold, rented or shared with advertisers, and it is not used to build a profile of you.

4. Your rights

Write to the contact address to ask what is held about you, to have it corrected, or to have it deleted. A deletion request is honoured within thirty days, except for the accounting record that local law requires us to keep.

5. Children

The books are written for secondary-school and university students. We do not knowingly collect data from children under thirteen; a purchase should be made by an adult.