The official data for the third quarter of 2026 has been compiled, and Sweden’s most sold fiction title across all formats is Lars Kepler’s Medusa. Martin Widmark also comes in at No. 1, topping the children’s books list with The Kidnapping Mystery.

Anders Hansen’s The Achilles Heels of Your Brain meanwhile features at No. 3 on the nonfiction list, and Pascal Engman’s The Clan continues to make a showing on the paperback list for the second quarter running, placing at No. 5.

Moa Herngren’s new title, The Fallout, debuts on the quarterly lists and claims No. 5 in e-books and No. 6 in audio.

Lars Kepler’s Medusa, the eleventh book in the Joona Linna series, grabs the No. 2 spot on the hardcover list for the month of September. Martin Widmark also claims a No. 2 spot, grabbing silver on the childrens’ list with the latest LasseMaja book, The Kidnapping Mystery.

Martin Widmark’s The Kidnapping Mystery once again tops the official Swedish bestseller list for children’s titles, coming in at No. 1. Meanwhile, Lars Kepler’s Medusa, the eleventh book in the Joona Linna series, occupies the No. 2 spot on the hardcover list.

Martin Widmark, author of the bestselling LasseMaja and Nelly Rapp children’s books series, has been Sweden’s most borrowed name in libraries for almost two decades. Apart from his authorship, the former teacher has also made multiple initiatives to boost children’s reading, many of which have been implemented nationally.

Now his work has been awarded the Joint Industry Award by The Association of Swedish Graphic Industry and Media Companies.

The jury’s motivation:

“Few people have like Martin shown the power that the printed book holds for the language and reading joy of children. He has been the country’s most borrowed author in libraries for many years, initiated the project ‘A reading class,’ and driven through nationwide investments into preschool libraries. Through the LasseMaja Foundation and advocacy, Martin continues to work for the reading comprehension of young people as a prerequisite for knowledge and democracy.”

Martin Widmark’s The Kidnapping Mystery, tops the official Swedish bestseller list for children’s titles, coming in at No. 1 for the third consecutive week.

Moa Herngren’s just published The Fallout comes in at No. 4 on the official hardcover bestseller list of August in Sweden. Martin Widmark’s latest JerryMaya title, The Kidnapping Mystery, grabs the No. 2 spot on the children’s fiction list.

Martin Widmark’s The Kidnapping Mystery stays at the top of the official Swedish bestseller list for children’s titles, coming in at No. 1 also this week.

Martin Widmark’s The Kidnapping Mystery jumps to the top of the official Swedish bestseller list for children’s titles. The Kidnapping Mystery is a brand-new, extra tricky story about the cooky inhabitants of Valleby. The Kidnapping Mystery is the thirty-fifth installment in the series about Jerry and Maya.

Pascal Engman’s The Clan stays put at No. 1 in paperback. Martin Widmark’s JerryMaya’s Summer Holiday Book: An Unexpected Thief meanwhile climbs the children’s bestseller list, coming in at No. 2.

The Swedish bestseller lists for the first quarter of 2026 are out. Björn Natthiko Lindeblad’s From Björn Natthiko Lindeblad. With an open hand claims the No. 5 spot on the non-fiction list, while Martin Widmark’s The Fire Brigade Mystery features at the same position on the children’s list. The paperback list sees Jo Nesbø’s Blood Ties taking the No. 5 spot.

Stefan Ahnhem’s Generation Zero, the latest installment in the Fabian Risk series, takes to No. 1 spot on the official Swedish bestseller list for paperback fiction this week. Additionally, Martin Widmark’s The Smuggle Mystery, the latest installment in the JerryMaya Detective Agency series, comes in at No. 5 in the children’s category.