Last updated: 16 October 2026
What this site collects
Nothing directly. There are no sign-up forms, no comment boxes and no tracking or advertising cookies. You can read every page and download the free cards without giving us anything.
Hosting
The site is hosted by Cloudflare. Like any web host, Cloudflare processes technical data such as your IP address to deliver pages and protect the site from attacks. See Cloudflare's privacy policy for details.
When you buy the book
Payments are handled by Stripe, with Link, Stripe's checkout service, as the merchant of record. Stripe and Link collect the details needed to process your order (such as your email address, country and payment details) under their own privacy policies. We receive your email address and order details so we can deliver the book and answer questions about your order. We never see your card details.
When you email us
If you write to [email protected], we keep your message only to answer it. We never share it, and we never add you to a mailing list without asking.
Your rights
You can ask us what we hold about you, and ask us to correct or delete it, at [email protected]. If you're in the EU or the UK, you can also complain to your data protection authority.