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Book Love 2025: The top bestsellers and insider tips in September!
Discover the current book bestsellers, BookTok trends and top recommendations for September 2025 on VOL.
Book Love 2025: The top bestsellers and insider tips in September!
In September 2025, the book world will enjoy exciting new releases and bestsellers, which will be characterized by both traditional and new digital platforms. Monthly updates show that BookTok, a phenomenon on TikTok, is a major contributor to this momentum. Loud vol.at “The Assistant” by Caroline Wahl is at the top of the bestseller lists.
Wahl tells the story of Charlotte, a musician who struggles with the challenges of performance pressure and personal doubts in the Munich publishing industry. Her debut novel “22 Bahnen”, which also made it into the top lists, is coming to cinemas. In the non-fiction section, Giulia Enders leads with “Organic”, a humorous overview of internal body functions.
The power of BookTok
The BookTok phenomenon has become a driving force in the book industry. Over 50 million posts under the hashtag #BookTok demonstrate the reach and influence of the community that connects books and readers. In 2024, more than 25 million books were sold in Germany based on BookTok recommendations - a doubling compared to the previous year 24books.de reported.
The popularity of BookTok has enabled many previously unknown titles to catapult into the bestseller lists. The community creates an environment in which books become a topic of conversation again, and real fan and emotional stories dominate the opinions of reviews. The romance “Fourth Wing” by Rebecca Yarros is also very popular, combining adventure and emotional elements.
Bestseller overview
The current bestseller lists show an interesting combination of new and well-known titles:
| Mirror bestseller | Book | author |
|---|---|---|
| #1 Fiction | The assistant | Caroline Wahl |
| No. 1 non-fiction book | Organic | Giulia Enders |
In addition, in the field of novels, “Katabasis” by R.F. Kuang, which tells of a dangerous path to hell, is undisputed on the list of New York Times bestsellers. Jonathan Haidt's “The Anxious Generation”, which deals with the increase in anxiety and depression among young people, also tops the non-fiction hit list.
New releases and recommendations
Numerous interesting titles were also published in September 2025. Among these are:
- Feels Like an Autumn Breeze – Lilli Hazel (19. September 2025)
- All das Ungesagte zwischen uns – Colleen Hoover (11. September 2025)
- Alchemised – SenLinYu (23. September 2025)
- No Way Home – T.C. Boyle (16. September 2025)
- Stonehenge – Die Kathedrale der Zeit – Ken Follett (23. September 2025)
- The Secret of Secrets – Dan Brown (9. September 2025)
The book industry is currently not only experiencing an increase in sales and readership, but also a challenge: one in four people has inadequate reading skills, which further highlights the need for initiatives to promote reading. However, readers are invited to share their own book tips in the comments and thus become part of this constantly evolving reading culture.
Current trends show the positive mood in the book industry, with both social media and reader engagement playing a crucial role. The future goal remains to transform this enthusiasm into a sustainable reading culture.