“My son is a screen kid. He read this until 9pm without me saying a word. I bought two more for his cousins.”
David K.
"My daughter explained tectonic plates to my mother-in-law. She's 8. We were completely speechless."
Rachel M.
Kid's Encyclopedia "10,000 Whys" — Unlock Your Child's Full Potential
Kid's Encyclopedia "10,000 Whys" — Unlock Your Child's Full Potential
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The Book That Answers Every Question Your Child Has Ever Asked
Not a textbook. Not a reference tool. A book children pick up because they want to — and can't put down.
Real Questions Kids Actually Ask
The ones children wonder about every single day — not what adults think they should know
Everything In One Book
Animals, space, the human body, nature, technology, daily life and more
Competes With Screens
Kids choose it voluntarily — parents call it the only thing that works
Ages 6–12
Written simply, illustrated beautifully, built to be read for fun
"His teacher called to say he was the most engaged student in class. All from a book he found on the coffee table."
— Rachel M., Mom of two · Verified buyer
Loved by 18,000+ Families Worldwide
Real parents. Real kids. Real results — tracked over 90 days.
of parents say their child's school performance improved within 60 days
📈 School performanceof kids voluntarily picked up the book without being asked, after day 7
📚 Voluntary readingof parents said their child started asking deeper, more insightful questions
🧠 Curiosity & thinkingResults from a 90-day post-purchase survey of 1,200+ customers, December 2024 – February 2025
One Book. Every Subject They're Curious About.
From the deepest ocean to the edge of the universe — if your child has wondered about it, the answer is in here.
Space & Universe
Black holes, planets, stars, rockets and life beyond Earth
Dinosaurs
Why they went extinct, how we find them, what they really looked like
The Human Body
Why your heart beats, how your brain works, why you dream
Oceans & Sea Life
Deep sea creatures, why the ocean is salty, how waves form
Weather & Nature
Thunder, lightning, tornadoes, rainbows and the sky
History & Civilisations
Ancient Egypt, the Romans, great inventions and how the world changed
Animals & Wildlife
How animals survive, migrate, communicate and why some go extinct
Science & Physics
Gravity, light, sound, electricity and how everything works
Plants & Biology
How plants grow, why leaves change colour, what makes things alive
The Brain & Mind
Memory, emotions, sleep, dreams and how the mind works
Technology & Inventions
How planes fly, how the internet works, what computers do
Earth & Geography
Volcanoes, earthquakes, tectonic plates and how Earth formed
What Parents Are Saying
“My 9-year-old asked me ‘Mom, why do we have two eyes instead of one?’ I didn't know the answer. He went straight to this book, found it, and spent 45 minutes reading about vision, brains and evolution. He came back and explained it to me. I almost cried. His teacher called two weeks later to say he was the most engaged student in class.”
Rachel M.
“I was skeptical. My son doesn't read. He's a screen kid. I put this on the coffee table and didn't say a word. Day 3, I found him on the floor reading about black holes at 9pm when I thought he was asleep. He's read it cover to cover twice. That is not a normal thing for him. Buy it — it competes with screens and wins.”
David K.
“Bought 3 copies — one for each of my kids and one for my nephew's birthday. The dinner table conversations we've had because of this book are priceless. My 7-year-old explained tectonic plates to my mother-in-law. She was completely speechless. This book changes how kids think, not just what they know.”
Jennifer L.
“My daughter has never once picked up a book without being forced. I left this on the coffee table on a Friday. By Sunday she had read half of it and was explaining to her grandfather why the moon doesn't fall out of the sky. He's a retired engineer. He was impressed. I was speechless. This book is something else entirely.”
Lisa W.
“Bought this for my grandson's birthday not knowing what to expect. He opened it, looked at the cover for about thirty seconds, and said ‘is this actually mine?’ He read it at his own party. His mum called me two months later to say he'd read it three times and was asking if there was a second one. Best gift I've given in years.”
Margaret T.
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