Content Ownership
This page explains who publishes the products sold on this website.
First-party products only
All books sold on this website are first-party digital products published by us. We do not operate a marketplace for third-party sellers. We do not sell books on behalf of external authors or publishers.
Rights
Materials are produced by us or distributed when we have the necessary rights or licences. We do not claim that we never use licensed third-party material (for example a licensed diagram or a cited excerpt).
AI-assisted tools
AI-assisted tools may be used during research, drafting, editing, translation or formatting. Books are reviewed before publication. We do not claim that books are 100% human-written.
Internal review
Before a product is published, an internal compliance review confirms that we own or have the rights to distribute it, that it is a first-party product, and that it was reviewed for prohibited or restricted content. That review is internal. It is not a “Stripe approval”.