The Multi-Format Reader Is Here: What Publishers Need to Build to Keep Up

Something significant happened in February 2026. Within two weeks of each other, two of the world's largest audio platforms launched features that, taken together, signal a fundamental shift in how readers engage with books.

On 5 February, Spotify launched Page Match — a feature that lets a reader point their phone camera at a page of a physical book or ebook and have their Spotify audiobook automatically sync to that exact point in the narrative. On 18 February, Audible launched Read & Listen — a feature that displays the ebook text in real time, highlighted word by word in sync with the audio narration, all within the Audible app.

Both companies are responding to the same underlying behaviour. Readers are not choosing between ebooks and audiobooks. They are using both, fluidly, in the same reading session and across different moments in their day. The commute is for listening. The evening is for reading. The Sunday afternoon might involve both at once. Spotify's own research, conducted in February 2026 among 3,000 UK adults, found that 51 per cent of readers now switch between audio and print or ebook formats to meet their reading goals. Audible reports that customers who use its immersion reading feature consume nearly twice as much content per month as audiobook-only customers — and 90 per cent of those users say reading while listening improves their retention and comprehension.

This is not a niche behaviour. It is becoming the default for engaged readers. And it raises an important question for publishers who are serious about their digital strategy: if this is how your readers want to engage with your content, are you able to deliver that experience on your own platform?

What Audible and Spotify Are Actually Building

It is worth understanding what these features technically require, because the engineering involved is not trivial — and it has direct implications for any publisher thinking about their own branded reading experience.

Audible's Read & Listen feature requires word-level synchronisation between the audio narration and the ebook text. The system needs to know exactly which word in the ebook corresponds to which moment in the audio file, and it needs to update that position in real time as the narration progresses. This is a solved problem in the industry — the technology is called Media Overlays in the EPUB 3 specification, and it has been part of the standard for over a decade — but implementing it well, across hundreds of thousands of titles, in a consumer-grade app, is a significant undertaking.

Spotify's Page Match takes a different approach: it uses computer vision to identify the page a reader is on from a camera image, then maps that to the corresponding position in the audiobook. This is a more novel solution, designed to bridge the gap between physical books and digital audio, but it requires the same underlying data — a precise mapping between the text and the audio timeline.

Both approaches depend on publishers providing content in formats that support this kind of synchronisation. For ebooks, that means well-structured EPUB 3 files. For audiobooks, it means audio files with accurate chapter markers and, ideally, word-level timing data. Publishers who have invested in producing high-quality, standards-compliant content are better positioned to participate in these features. Publishers who have not will find their titles excluded from the most engaging reading experiences on the largest platforms.

The Platform Dependency Problem

There is a version of this story that is straightforwardly good news for publishers: readers are more engaged than ever, they are consuming more content, and the major platforms are investing in features that make that engagement even deeper. Audible's data showing that multi-format users consume nearly twice as much content per month is a compelling argument for investing in audiobook production alongside ebook publishing.

But there is another version of this story that publishers should think carefully about. Every reader who uses Audible's Read & Listen feature is a reader whose ebook is in the Kindle ecosystem and whose audiobook is in the Audible ecosystem. Amazon owns both sides of that relationship. The data about how that reader engages — which chapters they highlight, where they switch between formats, how long they spend in each session — belongs to Amazon, not to the publisher.

Similarly, every reader who uses Spotify's Page Match is a reader whose audiobook listening data is in Spotify's ecosystem. Spotify knows which titles that reader finishes, which they abandon, and which they return to repeatedly. That is valuable data about reader behaviour and content quality — and it is data that Spotify retains, not the publisher.

This is the structural challenge that publishers face when they rely entirely on third-party platforms for their digital distribution. The platforms are excellent at building features that readers love. They are also excellent at capturing the data that those features generate. Publishers who want to understand their readers — and use that understanding to make better editorial, marketing, and product decisions — need a way to deliver content directly, in their own branded environment, where the engagement data belongs to them.

What a Publisher-Owned Multi-Format Platform Looks Like

The good news is that the technology required to deliver a multi-format reading experience — ebook text, audio narration, and synchronisation between them — is available to publishers who want to build their own branded platform. It does not require building from scratch, and it does not require the engineering resources of Amazon or Spotify.

The EPUB 3 Media Overlays specification, which underpins synchronised text and audio reading, is supported by the Readium reading engine — the open-source EPUB reading system that powers a growing number of publisher platforms, including Publish360. A publisher who delivers their content through a Readium-based platform can offer their readers the same fundamental experience that Audible has launched as a major product feature: ebook text highlighted in real time, in sync with the audio narration, within a single branded reading environment.

The practical requirements are worth being specific about. To deliver synchronised text and audio reading, a publisher needs well-structured EPUB 3 files with accurate text content and, ideally, Media Overlays data that maps the text to the audio timeline. Publishers who have been producing EPUB 3 content to a high standard are already most of the way there. Publishers who are still working with EPUB 2 or poorly structured files will need to address that before synchronised reading is possible.

High-quality audiobook files with accurate chapter markers are also essential. Word-level timing data is ideal but not always available; chapter-level synchronisation is a reasonable starting point for most publishers. Our audiobook distribution guide for publishers covers the production and format requirements in detail.

The third requirement is a delivery platform that supports both formats and can handle the entitlement logic — ensuring that a reader who has purchased both the ebook and the audiobook can access both within the same branded app, and that the synchronisation works correctly across devices. This is where the platform choice matters most. A publisher who delivers ebooks through one system and audiobooks through another will struggle to offer a coherent multi-format experience.

The Engagement Argument

The data from Audible and Spotify is not just interesting context — it is a business case. Readers who engage with content in multiple formats are more engaged overall. They consume more content, they retain it better, and they are more likely to continue their reading relationship with a publisher or platform over time.

For publishers building subscription-based digital products, this matters enormously. Subscription retention is the central challenge of any recurring revenue model, and engagement is the primary driver of retention. A reader who is actively using a platform — switching between ebook and audio, finishing titles, returning for more — is a reader who is unlikely to cancel their subscription. A reader who downloaded the app, read one chapter, and never returned is a reader who will churn at the first renewal.

The multi-format reading experience is, in this sense, a retention tool as much as a product feature. Publishers who can offer their subscribers the flexibility to read or listen — or do both at once — are offering something that a single-format platform cannot match. That flexibility is increasingly what engaged readers expect, and it is increasingly what the major platforms are investing in to keep their users engaged.

The question for publishers is not whether to offer multi-format content. The data from Spotify and Audible makes it clear that readers want it, and that the platforms which offer it are seeing measurably higher engagement. The question is whether to offer it on someone else's platform, where the reader relationship and the engagement data belong to the platform, or on a branded platform where those assets belong to the publisher.

Ready to explore what a multi-format reading experience could look like for your publishing business? Eden Interactive works with publishers of all sizes to deliver secure, white-label reading experiences through Publish360 — supporting ebooks, audiobooks, video, and course content in a single branded platform. Get in touch to start the conversation.