Home
Blog
Overview of all products
SalesData
LibraryData
CataList
Loan Stars
BiblioShare
Webform
EDI
Products for publishers
Products for retailers
Products for libraries
Information for authors
BNC Research
Canadian literary awards
SalesData & LibraryData Research Portal
Events
Tech Forum
Webinars & Training
Code of Conduct
Standards
EDI standards
Product identifiers
Classification schemes
ONIX standards
About
Contact us
Media
Bestseller lists
Newsletters
Podcast
Jobs
SalesData
LibraryData
CataList
BiblioShare
Webform
EDI

BookNet Canada

Home
Blog
Overview of all products
SalesData
LibraryData
CataList
Loan Stars
BiblioShare
Webform
EDI
Products for publishers
Products for retailers
Products for libraries
Information for authors
BNC Research
Canadian literary awards
SalesData & LibraryData Research Portal
Events
Tech Forum
Webinars & Training
Code of Conduct
Standards
EDI standards
Product identifiers
Classification schemes
ONIX standards
About
Contact us
Media
Bestseller lists
Newsletters
Podcast
Jobs
SalesData
LibraryData
CataList
BiblioShare
Webform
EDI
BookNet Canada
May 1, 2025
Tech Forum, Standards & Metadata

Common metadata issues and how to fix them: Forgetting to include related products in your metadata

BookNet Canada
May 1, 2025
Tech Forum, Standards & Metadata

At BookNet, metadata is at the core of what we do. With so much of it flowing in and out of our products and services, we’ve seen it all. In this blog series, we'll share each of the common issues addressed in the Improving your metadata: Common issues and how to fix them Tech Forum presentation where eight BookNetters walk you through some of the most common issues we see in publishers’ metadata, highlighting what metadata standards are recommended for each case and showing you how to fix these common problems.

Why is this important? Accurate, high-quality metadata ensures your books are seen and that they succeed in today’s competitive marketplace. Join us as we help you optimize your metadata and unlock its full potential!

The issue: Forgetting to include related products in your metadata

Image source: imageresizer.com/meme-generator/edit/same-spider-man-7

Why related products? Think about it: Readers often want to find books comparable to one they just finished, or they might be looking for alternative formats of a book they're interested in. Leveraging the power of related products can boost discoverability, sales, and readership.

Why is this an issue?

Missing related product data means readers can't easily:

  • find other formats of the same book (ebook, paperback, audiobook)

  • discover titles by the same author

  • explore comparable titles they might enjoy; or

  • locate previous or updated editions.

This limitation affects the entire supply chain, from retailers who want to suggest related purchases to readers searching for their next read.

What BookNet recommends

1. Understand ONIX standards for related products

Both ONIX 2.1 and ONIX 3 support the related product composite, which allows you to identify relationships between books. Each related product entry requires a relation code that specifies the relationship type. In ONIX 2.1, the relation code is non-repeatable, but in ONIX 3, the relation code is repeatable. That means the best practice in ONIX 3 would be to provide one entry per ISBN that is in the related product composite, and you can include in each entry all the types of relationships that this related product has to the main product.

2. Utilize appropriate relation codes

Choose from Codelist 51 the relation code that best describes the relationship. A few common examples:

  • Code 03: Identifies previous editions

  • Code 22: Indicates books by the same author

  • Code 23: Designates similar or comparable titles

3. Connect with your data recipients

Reach out to your partners whose websites display your product information to understand:

  • Whether they pull in related product data

  • Which relation codes they support

  • Any additional limitations you should be aware of

4. Leverage the power of your preferred ONIX editing tool

Depending on how you send your data to data recipients, you might not have to handle the metadata directly in its XML format. If you're using an ONIX editing tool, like BookNet’s Webform, for example, you likely have an interface where you can enter the related product's ISBN and specify the relationship it has to the product that you're updating.

Need help? Don't hesitate to reach out to the BookNet team with specific questions.

The complete slide deck and transcript from this session are available here.

To stay up to date, subscribe to our weekly eNews where we share news about upcoming events and webinars, new research, updates on industry standards, link round-ups, and more.

Subscribe

Don’t miss any new blog posts. Sign up for our weekly eNews to receive updates.

You can unsubscribe at any time. We respect your privacy.

Thank you!
Recent posts
Loan Stars is 10!
Loan Stars is 10!

Celebrate 10 years of Loan Stars and get a glimpse of the key numbers to note from the 177 top 10 lists we’ve shared!

Read More →
Canadian book buyers in 2025
Canadian book buyers in 2025

Insights into the behaviour of Canadian book buyers.

Read More →
Subject Spotlight: Juvenile Fiction
Subject Spotlight: Juvenile Fiction

Sales and library circulation data of Juvenile Fiction titles during the the first quarter of 2026.

Read More →
Canadians and their leisure time in 2025: Leisure & Reading study
Canadians and their leisure time in 2025: Leisure & Reading study

This free report looks at how Canadians are spending their leisure time and the behaviours of Canadian readers in 2025.

Read More →
Easier with BookNet: Share notes with contact lists and groups in CataList
Easier with BookNet: Share notes with contact lists and groups in CataList

The Notes feature can be used to save notes privately or share them with your team or clients of your choice. Learn more about how else you can use Notes!

Read More →
Podcast: A peek into Canadians' reading
Podcast: A peek into Canadians' reading

Listen in as we give you some of the highlights from our forthcoming report, Canadian Leisure & Reading Study 2025.

Read More →
Results from the AI use across the North American book industry survey
Results from the AI use across the North American book industry survey

This report shares insights into the adoption of AI, applications of the technology, perception of value, interest in training, areas of concern, and more.

Read More →
Thema: The missing half to your subject classification strategy
Thema: The missing half to your subject classification strategy

Why and how should you use Thema? Here’s a series of resources that will help you understand its capabilities and help you get started in implementing it!

Read More →
The nuances of online book marketing in 2026
The nuances of online book marketing in 2026

Ariel Hudnall, managing director of Serif, shares key insights into developing digital marketing strategies for the publishing industry.

Read More →
Canadian Independent Bookstore Day 2026
Canadian Independent Bookstore Day 2026

Celebrate Canadian independent bookstores on April 25!

Read More →
ONIX Codelist 73 released
ONIX Codelist 73 released

Insights into the latest updates and additions made to ONIX codelists.

Read More →
Must-watch, must-read: The Oscars 2026 effect
Must-watch, must-read: The Oscars 2026 effect

How did being nominated for the Oscars in 2026 impact book sales, loans and holds among Canadians?

Read More →

Tagged: book metadata best practices, onix 3.0

Newer PostCanadian book buyers in 2024
Older PostPodcast: Canadian bookmark project
No results found
Blog RSS

The Canadian Book Market 2025 is the comprehensive guide to the Canadian market with in-depth category data.

Get your copy now

Listen to our latest podcast episode


  • Research & Analysis 478
  • Ebooks 304
  • Tech Forum 278
  • Conferences & Events 262
  • Standards & Metadata 249
  • Bookselling 221
  • Publishing 199
  • ONIX 193
  • Marketing 153
  • Podcasts 127
  • ebookcraft 112
  • BookNet News 106
  • Loan Stars 77
  • Libraries 67
  • BiblioShare 59
  • 5 Questions With 53
  • SalesData 51
  • Thema 47
  • CataList 44
  • Awards 30
  • Diversity & Inclusion 21
  • Sustainability 19
  • Publishing & COVID-19 18
  • EU Regulations 16
  • LibraryData 10
  • ISNI 4

 

 

BookNet Canada is a non-profit organization that develops technology, standards, and education to serve the Canadian book industry. Founded in 2002 to address systemic challenges in the industry, BookNet Canada supports publishing companies, booksellers, wholesalers, distributors, sales agents, industry associations, literary agents, media, and libraries across the country.

 

Privacy Policy | Accessibility Policy | About Us

BOOKNET CANADA

Contact us | (416) 362-5057 or toll free 1 (877) 770-5261

We acknowledge the financial support of the Government of Canada through the Canada Book Fund (CBF) for this project.

Back to Top

BookNet Canada acknowledges that its operations are remote and our colleagues contribute their work from the traditional territories of the Mississaugas of the Credit First Nation, the Anishnawbe, the Haudenosaunee, the Wyandot, the Mi’kmaq, the Ojibwa of Fort William First Nation, the Three Fires Confederacy of First Nations (which includes the Ojibwa, the Odawa, and the Potawatomie), and the Métis, the original nations and peoples of the lands we now call Beeton, Brampton, Guelph, Halifax, Thunder Bay, Toronto, Vaughan, and Windsor. We endorse the Calls to Action from the Truth and Reconciliation Commission of Canada (PDF) and support an ongoing shift from gatekeeping to spacemaking in the book industry.