// legal
license
last updated: March 2026
01 — personal license
Each purchase of “PostgreSQL for AI — Building Intelligent Applications” grants a single-user, non-transferable, perpetual license to the individual who made the purchase.
02 — what you can do
✓ Read on all your personal devices (laptop, tablet, phone, e-reader)
✓ Use all code examples in personal and commercial projects
✓ Reference and quote short passages with attribution
✓ Print a copy for your personal use
✓ Access all future updates to the current edition
03 — what you can’t do
✗ Share, redistribute, or resell the Book files
✗ Upload to public file-sharing services or torrent sites
✗ Share your download link with others
✗ Reproduce substantial portions of the text in any medium
✗ Use the Book content to train AI/ML models
✗ Claim authorship of the Book or its content
04 — code examples
MIT License
All SQL queries, Python scripts, configuration files, and code snippets included in the Book are released under the MIT License. You are free to use, modify, and distribute code examples in your own projects — personal or commercial — without restriction or attribution requirement.
This applies only to code. The surrounding text, explanations, diagrams, and overall structure remain under the personal license above.
05 — team & company use
Need copies for your team? Each team member requires their own license. For volume discounts (5+ copies) or company-wide licensing, contact me@zeybek.dev.
06 — a note on trust
This book is DRM-free because I trust my readers. No watermarks, no tracking, no lock-in. In return, I ask that you respect the license and don’t share the files. If a friend or colleague wants a copy, please send them to the purchase page. It helps me keep writing.
07 — questions
Not sure if your use case is covered? me@zeybek.dev — I’ll get back to you within 24 hours.