A stylized red-lit scene showing an open book with fanned pages beside a laptop on a desk, with floating digital symbols in the background.

Metadata

Metadata drives discoverability and sales.

Metadata determines how books are found, understood and recommended across search engines, retailers and AI. Beyond titles and covers, rich metadata provides the context that connects books with the right readers. Supadu transforms publisher metadata into dynamic, discoverable web experiences that improve visibility, engagement and sales.

Let's talk metadata
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01

What actually is metadata?

If you don’t already know, metadata is all the information about a book that helps it get discovered, understood, and sold. So it's things like book title, description, author contributors, ISBN, keywords and many more. If your metadata isn’t working, your books are effectively invisible.

It’s the digital equivalent of putting your book on the right shelf, with the right sign, in the right shop… that customers can actually find.

A curved bookshelf filled with titles in a professional setting
02

Metadata as a discovery engine

Metadata is what connects your books to readers. Search engines and platforms don’t “see” books the way people do—they rely on structured data to interpret meaning and relevance.

Strong metadata allows your content to surface not just for direct searches, but for broader, intent-based queries. Themes, subjects, tone, and audience all contribute to how your books are positioned and discovered.

When done well, metadata turns your website from a static catalogue into a connected discovery engine.

An upclose photo of a out of focus bookshelf with the titles obscured
03

Supafolio: bringing metadata to life

Supafolio powers Supadu websites by transforming raw metadata into rich, fully realised book pages automatically.

Instead of manually building pages, Supafolio uses your ONIX feed to generate content that includes extended descriptions, contributors, subjects, and intelligently linked related titles. Every update flows through dynamically, ensuring accuracy without added workload.

The result is a scalable, metadata-driven experience where every book benefits from depth, context, and connectivity.

An illustration of stacks of red books in columns in a dark environment
04

Metadata in the age of GEO

AI is changing how content is discovered. Instead of returning a list of links, AI tools generate answers, recommendations, and summaries based on meaning and context.

This shift makes metadata more important than ever. AI systems rely on clear, structured, and content-rich data to understand what a book is about and when it should be recommended.

Publishers who invest in detailed, well-structured metadata are far more likely to be surfaced in AI-generated responses—whether that’s a reading recommendation, a topic summary, or a curated list.

01

What actually is metadata?

If you don’t already know, metadata is all the information about a book that helps it get discovered, understood, and sold. So it's things like book title, description, author contributors, ISBN, keywords and many more. If your metadata isn’t working, your books are effectively invisible.

It’s the digital equivalent of putting your book on the right shelf, with the right sign, in the right shop… that customers can actually find.

02

Metadata as a discovery engine

Metadata is what connects your books to readers. Search engines and platforms don’t “see” books the way people do—they rely on structured data to interpret meaning and relevance.

Strong metadata allows your content to surface not just for direct searches, but for broader, intent-based queries. Themes, subjects, tone, and audience all contribute to how your books are positioned and discovered.

When done well, metadata turns your website from a static catalogue into a connected discovery engine.

03

Supafolio: bringing metadata to life

Supafolio powers Supadu websites by transforming raw metadata into rich, fully realised book pages automatically.

Instead of manually building pages, Supafolio uses your ONIX feed to generate content that includes extended descriptions, contributors, subjects, and intelligently linked related titles. Every update flows through dynamically, ensuring accuracy without added workload.

The result is a scalable, metadata-driven experience where every book benefits from depth, context, and connectivity.

04

Metadata in the age of GEO

AI is changing how content is discovered. Instead of returning a list of links, AI tools generate answers, recommendations, and summaries based on meaning and context.

This shift makes metadata more important than ever. AI systems rely on clear, structured, and content-rich data to understand what a book is about and when it should be recommended.

Publishers who invest in detailed, well-structured metadata are far more likely to be surfaced in AI-generated responses—whether that’s a reading recommendation, a topic summary, or a curated list.

An image of binary code over a map of the America and Europe in dots and a dark blue backgroundA curved bookshelf filled with titles in a professional settingAn upclose photo of a out of focus bookshelf with the titles obscuredAn illustration of stacks of red books in columns in a dark environment

75%

Increase in sales when all basic metadata elements is added

51%

Increase in sales when a cover image is included

44%

Increase in sales when metadata is added 16 weeks before publication

The importance of metadata

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Discoverability (search + AI)

Metadata is what search engines and AI tools actually read. Titles, subjects, keywords, and descriptions tell systems when to surface your book. Poor metadata = invisible content.

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Context, not just identification

It’s no longer enough to list title and author. Rich metadata (themes, tone, audience, comparable titles) helps position a book within a wider landscape. This is how AI decides relevance.

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Powers recommendation systems

“Similar books”, “you might also like”, category browsing—all of this is driven by structured metadata like BISAC or Thema codes.

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Sales across channels

Retailers, distributors and libraries rely on metadata feeds (e.g. ONIX). If your metadata is weak or inconsistent, your book underperforms everywhere, not just on your own site.

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Improves conversion, not just traffic

Clear descriptions, accurate formats, pricing, and contributor info build trust. Better metadata doesn’t just bring users in—it helps them decide to buy.

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Future-proofs for AI discovery

With GEO, AI tools don’t just index, they interpret. The richer and more structured your metadata, the more likely your content is to be cited in AI-generated answers.

“Thank you for all of your excellent help on our websites. Everyone is so skilled and easy to work with. Outstanding!”

Longleaf Services

“Supadu's helpful emphasis on publish helps keep my development cost quite down as they are continually addressing the issue of the industry as a whole”

Baylor University Press

“When we needed to update our site in order to meet the standards of the European Accessibility Act, our colleagues at Supadu managed the project in a timely fashion, with a strong attention to detail, and a kindness that we always appreciate. I couldn’t be more grateful!”

NYU Press