Excellent

4.7/5.0

100000 Why's Children's Encyclopedia

$38.99 $58.99 SAVE 34%

  • Answers to the questions your kid actually asks — why the sky's blue, why we dream, why ice floats
  • 📖  Written so a primary-schooler gets it on the first read, without you translating
  • 🚫 Zero screens, no "go look it up" — one book on the shelf that handles every "but why?"
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The Book That Answers Everything.

Real Questions, Real Answers

Not a dry reference nobody opens. These are the questions kids actually ask out loud, answered in language they get on the first read.

Written For Their Reading Level

Primary-school students can read it alone, which means it works as independent reading instead of another thing you have to sit and do with them.

Curiosity That Keeps Going

One answer leads straight into the next question, so a kid who opens it for one thing stays for six more. That's the whole point of extracurricular reading.

Screen-Free Answers

The alternative is handing them your phone. This lives on the shelf, gets pulled down at dinner, and settles the argument without a single notification.

From "I Don't Know" To "Go Look It Up."

What changes when the answers live in your house.

Phase 1

The First Question

They ask something you can't answer. Instead of the phone, you hand them the book. They find it themselves and read it out loud to you — and something shifts, because now they're the one with the answer.

Phase 2

The Week It Becomes Theirs

They stop asking you first. The book comes to the dinner table, goes in the backpack, sits open on the floor. Every answer sparks a new question, and they keep flipping to find it.

Phase 3

The Kid Who Looks Things Up

This is the real payoff, and it isn't about facts. It's a kid who learned that questions have answers and that finding them yourself is the fun part. That habit outlasts this book by decades.

Zero screens, zero "go ask Google" — 29,000+ sold, 4.6★
Zero screens, zero "go ask Google" — 29,000+ sold, 4.6★
Zero screens, zero "go ask Google" — 29,000+ sold, 4.6★
Zero screens, zero "go ask Google" — 29,000+ sold, 4.6★

This vs. A Learning App

Both answer the question. Only one builds the habit.

This vs. A Learning App

Both answer the question. Only one builds the habit.

This
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Answers written for a child's reading level
Zero screens, zero notifications, zero rabbit holes
Builds the habit of looking things up
They read it independently
Nothing to take away at bedtime

Don't Just Take Our Word For It.

Real customers. Real parents. Verified purchases.

Excellent 4.7/5 based on 2,100+ customer reviews

RISK-FREE Guarantee

We stand behind every copy. If it's not right for your kid, return it within 30 days for a full refund. Free returns, no hassle.

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100% Satisfaction
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RISK-FREE Guarantee

We stand behind every copy. If it's not right for your kid, return it within 30 days for a full refund. Free returns, no hassle.

add to cart
100% Satisfaction
Fast Shipping
Easy Returns

Frequently Asked Questions

Find answers to common questions about our products, shipping, returns, and more.

What age is this for? +

Primary school students — kids who can read on their own and are deep in the "why?" phase.

What kinds of questions does it answer? +

The ones kids actually ask, across science, nature, the human body, and the everyday world around them.

Can my child read it alone? +

That's how it's built. The answers are written at a primary-school reading level so it works as independent extracurricular reading.

What format is it? +

Paperback, with thick pages and clear print — reviewers consistently mention the quality holds up to real use.