Korea's largest reading platform, kt Millie's library, said on the 22nd it released data for the "2025 year-end review of reading content" to mark the end of the year.
The year-end review captures users' reading consumption trends over the year based on key reading content usage data such as e-books, audiobooks, and chatbooks/docent books.
In the e-book institutional sector, rather than concentrating on particular bestsellers, a variety of works were read evenly, prompted by monthly plans and content releases. As content consumption tied to release timing grew active, a trend emerged in which books of interest naturally shifted by period.
In 2025, newly joined teenage users also stood out for taking part in reading centered on novels and widening their range of interest to books in the science field.
Audiobooks saw steady growth as "listening to read" took root as an everyday reading method. Consumption was clear especially around the novel genre, and content enhanced by narration from voice actors and actors recorded high usage rates.
By user age group, those in their 40s accounted for the largest share, and usage among teens also inched up from a year earlier, confirming a gradual expansion of the audiobook user base.
Meanwhile, as demand grew to briefly grasp key points rather than read a book verbatim, use of secondary content such as chatbooks and docent books also increased significantly. Usage of these contents surged compared with the initial launch, showing a change in reading methods.
Lee Seong-ho, head of the Reading Party at kt Millie's library, said, "This year-end review shows that users are enjoying reading in various ways, from e-books and audiobooks to secondary content," and added, "We will continue to advance our services so that subscribers can expand their reading experiences to suit their situations and preferences."