Nina, Serafina & Selina
Kids who understand the digital world know how to use it — without getting lost in it.
Detective stories that get our kids ready for the future: a children’s book series about artificial intelligence, social media, fakes, and their own data. Full of humor, never preachy, and told so that kids figure out for themselves how it all works. For example, that an AI is a guessing machine: it learned patterns from tons of examples and uses them to guess — often right, sometimes wrong. Dreamed up by a dad and his nine-year-old daughter, edited by Mom — who also brings ideas for new books. Written with AI as a tool — and every line checked by us.
Books 1 to 3 are coming soon. Sign up and we’ll let you know.
- Ages 7 to 10
- 11 books
- Printable activity pages
Start here
The first three cases
Books 1 to 3 start things off. Every case opens with a question kids already know.
Real or Fake?
There’s a whale floating over the schoolyard. It already has twenty-three likes in the class chat.
See the case →
The series
Eleven cases for children aged seven to ten
One topic per book. Book 1 covers the basics and starts things off.
11 of 11
None of the books are out yet. We will let you know the moment they are.
Get the free parents’ guideWhat’s inside
Every book is built the same way
So you know what you’re buying: the story first, then the activity, then the pages for you.
For the child
The story
Eight to twelve chapters in which the three solve a case. Each chapter ends with one line worth remembering, short enough for the fridge door.
For the child
The activity page
A game or experiment about the book’s topic. Free to print once the book is out.
For you
The parents’ page
What’s really behind the topic, and questions you can ask your child. Kept short, no jargon.
For both
Glossary and sources
The key terms explained in a child’s language. And every figure on the parents’ page comes with its source.
About us
Why these books exist
It all started at the kitchen table.
I work with artificial intelligence every single day, professionally, and have for years. And still, one question caught me completely off guard: “Dad, does the AI actually know everything?” It came from my daughter. She was nine. And she was already using these tools, just like almost every kid in her class.
We went looking for books that would explain it to her. What we found were books for grown-ups, warning pamphlets, and a lot of lecturing. Nothing that took kids seriously. So we decided to write them ourselves. Together.
Kuki (that’s what we call her here; her real name stays in the family) invented the three detectives. She reads every story before anyone else, and whatever she finds boring, illogical, or “so embarrassing” gets cut. No chapter is finished until Kuki gives it her okay. And before anything lands on these pages, Tina-Maria Siller, Kuki’s mom, reads every word.
These books aren’t here to scare anyone. Kids who understand how the digital world works don’t get fooled so easily.
And in case you’ve been wondering: yes, a little bit of AI helped with the writing. It would be pretty strange to make books about the guessing machine without ever using it. But it was exactly what it is in every one of these books: a tool. The ideas, the detectives, every decision, and the final word: those are ours. Because that’s what every book in this series says: you’re the boss.
Kuki (9) and Dad write, Mom edits and brings new ideas. And a little AI helps.
What we stand for
Three rules we never bend
Every story ends with something kids can do
Dangers do show up — leaving them out would be dishonest. But every story ends with kids knowing what they can do. None ends on a scary note.
Simplified, yes. Wrong, never.
What the books say about AI, the internet and data has to be true. Every figure on the parents’ pages is sourced, or it goes.
A child has a vote
Kuki is nine and she has a veto. What she finds boring does not make the book. That’s why the books never sound like grown-ups talking down to kids.
Free
Material for school and for home
For every published book, the kids’ activity sheets come as a PDF — no account, no sign-up. Teachers get the teacher sheet and class set free by email.
For teachers
A ready-made classroom pack is coming for every book, starting with Books 1 to 3:
- Class set of the activity page, A4, prints cleanly in black and white
- Teacher sheet with the learning goal and a 45-minute plan
- Answers to every task
- Three discussion questions to close the lesson
For home
The tests from the books, large, with room to draw:
- The Zibblet Test from Book 1
- The Mistake Safari from Book 2
- The Picture Detective Check from Book 3
- More with every new book
Common questions
What parents ask us most
For adults · 18+
Parents’ newsletter
The parents’ guide, and a note when we launch
You get the parents’ guide with ten conversations worth having, and once a month a note when a new case comes out. Nothing else.
Forms appear only here and on the school page for teachers. No data at all is collected on the pages for children.