"Young readers will unknowingly fall in love with the fascinating language of mathematics as they crack codes and rescue missing mathematicians in this adventure."
—Lee Jeong-mo (Former Director of the National Gwacheon Science Museum)

"This thrilling story filled with mathematical puzzles will show you that math is all around us. I highly recommend this book to children before they develop a fear of math."
—Kim Beom-jun (Professor of Physics, Sungkyunkwan University)

"Like an exciting movie, this book hooks you from the very first page. Beyond math, it incorporates elements like black holes and quantum mechanics, nurturing children's comprehensive thinking skills."
—Lee Seon-ho (Popular science blogger "Teacher EXO")

"Finally, a great book that reveals the 'true face of math' to kids! Perfect for those who dread the word 'mathematics.'"
—Ok Hyo-jin (Elementary school teacher, author of Children Who Pay Taxes)

"A rare gem that perfectly bridges the gap between storybooks and educational science books!"
—Choi Seon-min (Elementary school teacher, author of Starting Today, Be the King of Elementary Knowledge)

★ Selected as a candidate for the 2024 Book of the Year by readers of YES24, a leading Korean bookstore

★ In the AI era, mathematics has become an essential "language." Renowned Korean mathematician and Oxford University mathematics professor Kim Min-hyung collaborated with award-winning children's author Kim Tae-ho and Korea's beloved cartoonist Hong Seung-woo to create this series for elementary school students, blending 【mathematical knowledge】, 【mystery stories】, 【puzzle games】, and 【comics】 into one.

★ Endorsed by authoritative figures such as former Director of the National Gwacheon Science Museum Lee Jeong-mo, Sungkyunkwan University physics professor Kim Beom-jun, and bestselling children's author Ok Hyo-jin.

★ Dull mathematical concepts are cleverly woven into suspenseful detective stories. The books feature captivating plots while integrating themes like history, science, and family bonds, allowing young readers to naturally develop mathematical thinking while enjoying the thrill of reading.

The series currently includes three books:
The World of 0 and 1, The Disappearing Mathematician
Numbers and the World, Connecting Dad's Brain
When Math Meets Music: Dad's Hidden Formula

Dad is a mathematician who can predict the future.
Though he doesn’t possess psychic abilities, he can foresee events using a quantum computer.
After successfully developing a future-predicting computer, Dad accurately anticipates that the cat "Ding Dong" will be hit by a car and that a stranger will break into their home to take him away in 10 minutes. Before disappearing, he leaves an encrypted note for his twins. To solve the final puzzle on the note, the twins enter an underground tunnel connected to their father’s house, where they embark on another extraordinary adventure—entering a mental space linked to Dad’s brain through a "brain-computer interface." This seemingly empty space gradually reveals its contents under Ding Dong’s guidance.

Series Highlights:
Transforms abstract math into engaging stories
Develops logical thinking through puzzle-solving games
Incorporates family themes to evoke emotional resonance
Integrates cutting-edge technology to spark curiosity

[Author] Kim Tae-ho (Transliteration)
Born in 1972 in Daecheon City, South Chungcheong Province, Korea. Graduated from Sejong University with a degree in Western painting and later specialized in picture book creation at the Hanminjok SI Illustration School. His debut fairy tale Wait a Minute! won the 5th Changbi Children’s Newcomer Literary Award, launching his writing career. Notable works include the self-illustrated picture book Dad’s Playground, short story collections Cube Pig and The Lord’s Choice, middle-grade novels Traffic Light Commando and The Fly Bride, and young adult novels Children Who Guard the Stars and One Percent. The Lord’s Choice won the 2016 Munhakdongne Children’s Literature Award, and The Drunk Giant Who Flipped the Mountain received the 2017 Open Children’s Literature Award. He continues to write and frequently visits schools to share the joy of reading with young audiences.

[Illustrator] Hong Seung-woo (Transliteration)
In 1998, he began his professional cartooning career with the serialized comic Info People in The Hankyoreh Life. Starting in 1999, he created the long-running family comic Bibimbap Cartoon in The Hankyoreh Daily News, which depicted the parenting life of a young couple. With its sincere and relatable style, the series became a hit, and its printed editions were bestsellers. In 2020, it expanded into Bibimbap Cartoon Season 2, broadening its focus to neighborhood life. With 27 years of experience, Hong remains active in the industry, currently contributing to Children’s Science Dong-A and Current Affairs Journal. His notable works include the Bibimbap Cartoon series, Dr. Ignabel’s Science Experiment Chaos series, and Quantum Mechanics for Elementary Students series.

[Concept Planner] Kim Min-hyung (Transliteration)
A mathematician dedicated to making math accessible in the AI era using everyday language.
Career Highlights:
Professor of Mathematics, Oxford University
Visiting Professor in "Mathematics Popularization" at the University of Warwick (the world’s first professorship in this field)
Director of the Edinburgh International Mathematics Institute
Professor of Mathematics, University of Edinburgh
Graduate Professor, Seoul Institute for Advanced Studies

By applying core topological mathematical thinking, he solved a long-standing algebraic geometry problem related to Fermat’s Last Theorem, establishing himself as a world-class mathematician. In 2012, he received the prestigious Ho-Am Prize. Jordan Ellenberg, a mathematician and winner of the Euler Prize (one of the four major awards at the International Congress of Mathematicians), praised him: "Humans have studied number theory for about 3,000 years, yet few practical theories have emerged. Whenever someone develops a theory in a novel way, it’s a monumental achievement—and Kim Min-hyung has done just that."

In an era where scientific communication is a public concern, Professor Kim travels between the UK and Korea, conducting educational experiments to introduce ordinary people to the world of mathematics.

His 2018 book Moments When You Need Math (Chinese simplified rights sold) won the hearts of 150,000 readers, ushering in a new era of math education books. Other works include Welcome to the Math Club, The Math of Mathematics, Decimal Fantasy, Dad’s Study Trip, and Mathematicians (co-authored).

The Ho-Am Prize is an annual Korean award granted to "Korean individuals who have made outstanding contributions to the development of scientific culture and the welfare of humanity." Established by Samsung Group in 1991 and named after the pen name of its late chairman Lee Byung-chul, the prize includes a 6-ounce gold medal, a certificate, and 300 million KRW. Categories include the Ho-Am Prize in Science, Engineering, Medicine, Arts, and Community Service (awarded from 1991 to 1996).