ONIX Guides
Practical ONIX validation and book metadata guidance for publishing editors and metadata managers.
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Use the free ONIX validator- ONIX 2.1 to ONIX 3 Migration Guide
Plan an ONIX 2.1 to ONIX 3 migration with a practical mapping, testing, validation, and trading-partner rollout checklist for publishers.
2026-09-03 · Editorial Team
- ONIX Accessibility Metadata: EAA Guide for Publishers
Learn how to send accurate ONIX accessibility metadata for ebooks, support EAA workflows, use Lists 79 and 196, and validate every product record.
2026-09-03 · Editorial Team
- Why Your Book Metadata Matters for Amazon and Ingram
How title, contributor, pricing, rights, and format metadata shape book discovery and product pages at retailers like Amazon and distributors like Ingram.
2026-08-01 · Editorial Team
- What Is ONIX? A Beginner's Guide for Publishers
ONIX is the publishing industry's standard XML format for sharing book metadata. Learn what it is, who uses it, and why validation matters.
2026-08-01 · Editorial Team
- ONIX 3.0 Validation Guide: Common Errors and How to Fix Them
What validation checks in an ONIX 3.0 file, the five errors publishers hit most—element order, missing elements, code lists, ISBNs, prices—and how to fix each.
2026-08-01 · Editorial Team