Privacy Policy

This website is operated by Simon Späti, and we acknowledge the importance of protecting your data. We handle all personal data collected from you with utmost care and confidentiality.

Collection of Data

We collect your email address when you voluntarily subscribe to our newsletter or when you buy the book. We use Listmonk to store your email address, send our newsletter and additional information, and use Memberstack to handle subscriptions and payments. Read more for Memberstack on their Privacy Policy.

We also use GoatCounter, hosted on, to collect anonymous data about website usage. This process does not collect or store any cookies or personal data.

The anonymous data from GoatCounter helps us understand and optimize website usage. This data is not shared with third parties.

If you subscribe to the newsletter or buy the book, we use your email address solely for sending the newsletter and payment-related work. We do not share your email with third parties.

Storage of Data

Your email address will be stored as long as you are subscribed to our newsletter. You can unsubscribe or delete your information anytime via a link in our emails.

The information presented in this book and on our website is for informational and educational purposes only. It does not constitute advice. You assume sole responsibility for using this information. We are not liable for any losses or damages from using this information. Your choices, actions, and results are your responsibility.

Changes to the Privacy Policy

We reserve the right to change this privacy policy. Check this page regularly for current guidelines.


For questions or concerns about our privacy policy, contact us via email at

Thank you for trusting the "Data Engineering Design Patterns" book.