Terms of Service
Last updated: September 2026
The site
davidtzemach.com is operated by David Tzemach. By using it, you agree to these terms. If you don't agree, don't use the site.
Digital products
Books, guides, and tools sold here are for your personal use. Buying a PDF or a guide gets you a personal, non-transferable license to read and use it, not the right to resell, redistribute, or republish it. Software tools are licensed for use, not resold as your own.
No accounts
This site doesn't use customer accounts. Purchases are tied to your email address and a license key, delivered on the thank-you page and by email. Keep that email: it's how you'll re-download things later.
Payments
All payments are processed by Paddle, who acts as the merchant of record for these transactions. Paddle's own terms apply to the payment itself.
No professional advice
Articles, books, and guides on this site reflect one person's experience and opinions. They are not a substitute for professional advice specific to your situation. Scenario boxes in the books are illustrative composites, not accounts of specific clients or employers.
Limitation of liability
Products and content are provided as-is. To the extent permitted by law, David Tzemach is not liable for indirect or consequential damages arising from use of this site or its products.
Changes
These terms may be updated as the site changes. The date at the top of this page reflects the last update.