Contact ECAZU Catalogue
We welcome thoughtful correspondence from readers, researchers, and rights holders. Your observations help us maintain the accuracy and usefulness of the catalogue. Below are the most common reasons to write, along with the details that allow us to act efficiently.
Corrections & Metadata Updates
If you notice an incorrect title, author attribution, publication date, or category placement (for example, a work that should appear under Numbers, Algebra & Geometry: Sources & Perspectives but is listed elsewhere), please send the page URL, the current erroneous information, and your proposed correction. For category suggestions, mention the category name and why the work belongs there. Even small errors—a mis-spelled name or a wrong edition—are worth reporting.
File & Reader Issues
When a file fails to open, displays garbled text, or behaves unexpectedly on your device or browser, include the ebook title, the file format (EPUB, PDF, etc.), your device model or browser name, and a clear description of the problem. Screenshots are helpful but not required. Knowing the specific reader software (for example, Adobe Digital Editions, Calibre, or a built-in reader) can also help us reproduce the issue.
Accessibility Concerns
We aim to make our ebooks usable by everyone. If you encounter barriers—such as missing alt text, poor contrast, or incompatible navigation—please describe the issue and the assistive technology you use (screen reader, magnification software, text-to-speech engine, etc.). Your report will inform future improvements. We are especially interested in feedback on how our reading companions and edition insights work with assistive tools.
Privacy Questions
If you have questions about how we handle personal data, or wish to request removal of any information you believe should not be public, contact us. We take privacy seriously and will respond with a clear explanation. Please note that we do not collect personal information beyond what you voluntarily provide in correspondence.
Copyright & Rights Concerns
We strive to include only works that are in the public domain in the relevant jurisdictions. If you believe a title infringes your rights, or if you hold rights to a work and wish to discuss its inclusion, please provide the ebook title, the page URL, and any supporting documentation (such as registration or publication details). We will review the matter promptly. For works that may be public domain in some countries but not others, we appreciate guidance on the specific legal context.
General Editorial Observations
Whether you have a comment about a reading companion (for instance, Curiosa mathematica, Part 1 — Reading Companion or The Puzzle King — Reading Companion), a suggestion for a new category, or simply wish to share your experience, we are glad to hear from you. Feedback on the contextual materials—such as An essay on the foundations of geometry — Context and Discussion or Memorabilia Mathematica; or, the Philomath's Quotation-Book — Story, Setting & Ideas—helps us refine our approach.
How to Reach Us
Send all correspondence to editor@ecazu.com. Please include as much of the following as possible: the page URL, the ebook title, the file format (if relevant), your device or browser, a description of the observed problem, and any rights information you may have. While we cannot guarantee a specific response time, every message is read and considered. For complex issues, we may ask follow-up questions to fully understand the matter.
the catalogue contact