Privacy

Last updated November 10, 2026.

Short version: this site counts page views without cookies, and it never sees your email or payment details. Gumroad does.

Who runs this site

Leitz the developer, LLC. Questions go to leitz@mikeleitz.com.

Page views

I run my own copy of Umami, a privacy friendly analytics tool. It counts page views, referrers, browser type, country, and clicks on the get the book buttons. It sets no cookies and does not track you across other sites. I use the numbers to see if anyone reads the page.

Getting the book

The book is delivered by Gumroad. When you click through, you leave this site. Gumroad collects your email to send the book, and your card if you pay. Their privacy policy covers that part.

Server logs

Like most web servers, the one behind this site can log requests (IP address, time, page, and browser) to keep it running and find problems.

Your choices

Block the analytics script and the site still works. To ask about anything above, or to ask me to delete something, email leitz@mikeleitz.com.