Rated 4.8 (1,206+ reviews)
Bedtime
Two pages a night instead of one more episode.
Top-Rated Kids' Encyclopedia of 2026
The 100,000 Whys Encyclopedia
$9.99
$19.99
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- One question per page, answered in plain words
- Comic-style illustrated answers
- The body, animals, plants, space and earth
- A bonus fact box on every page
- A real book — no screen, nothing to charge
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DeliversNov 2 – Nov 5
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Sarah L.
My son asks why about forty times a day. Now he runs off and looks it up himself. He read the space chapter twice the first weekend and keeps quizzing us with the bonus facts.
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For the Kid Who Asks Why About Everything
Why is the ocean blue? Why can't we see stars during the day? You answer the first ten questions and then you run out. The 100,000 Whys puts the answers in their hands: one question per page, a plain answer and a cartoon that shows the idea.
It is a thick hardcover, made to be opened again and again. No screen, no app, nothing to charge. They look up their own question in the index at the front, read the page and come back to tell you what they found.
Why the 100,000 Whys Encyclopedia?
One question per page, nothing to wade through
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Each page opens with a big "why" question and answers it in a few plain sentences. The key lines stand out in colour, so a child finds the point without reading every word twice.
Comic illustrations that help explain
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Every answer comes with comic-style pictures that act out the idea. Younger children follow along while you read aloud, and confident readers take it from there on their own.
A bonus fact on every page
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Each answer ends with a small fact box: one extra detail about the same question. It is the kind of thing that gets repeated at the dinner table.
They find their own question
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The index at the front lists the questions with their page numbers. When a "why" comes up in the car or at bedtime, they can go and look it up themselves.
A proper book for their own shelf
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The 100,000 Whys is a thick hardcover, made to be read again. It is a reference book they keep coming back to, not a thin picture book that is finished in one sitting.
One Book. Every Curious Moment.
Rainy Days
An afternoon of questions answered without a screen.
Road Trips
The back-seat "why" gets looked up on the spot.
Gift Giving
A hardcover present for the curious kid on your list.
100,000 Whys Reviews
What parents say after the first week of questions
S
Sarah L.
- He reads it on his own
Reviewed
in the
United States
on
September 14, 2026
My seven-year-old asks why about everything. Now he grabs the book and finds the answer himself. The bonus-fact boxes are his favourite part and he reads them out to us at dinner.
D
Daniel K.
- Great screen-free gift
Reviewed
in the
United States
on
September 19, 2026
Bought it for my nephew's birthday instead of another gadget. He spent the whole afternoon on the space pages. The comic pictures keep him turning pages.
P
Priya S.
- Got all three
Reviewed
in the
United States
on
September 23, 2026
We took the three-book deal, one of each. Physics & Chemistry is a hit with my nine-year-old, and we read Life Skills together at bedtime.
M
Megan H.
- Solid hardcover
Reviewed
in the
United States
on
September 28, 2026
Thick hardcover that has survived a week in a school bag. Took a little longer to arrive than I hoped, but worth it.
C
Chris B.
- Answers I couldn't give
Reviewed
in the
United States
on
October 2, 2026
Half the questions my daughter asks I can't answer. Now we look them up together. The answers are short, in plain words, with the key line highlighted.
L
Lauren P.
- Car ride favourite
Reviewed
in the
United States
on
October 6, 2026
Lives in the back seat now. No screen, nothing to charge, and it keeps both kids busy on the drive to grandma's.
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60-Day Money-Back Guarantee
We offer a 60-day money-back guarantee on all products. If you're not fully satisfied, just contact us and we'll make it right.
ADD TO CART
60-Day Guarantee
Free Shipping on Bundles
Secure Checkout
Frequently Asked Questions
What age is it for?
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No age range is printed for it, so go by reading level. Every page is a big question, a short plain-language answer and comic-style pictures: confident readers read it alone, and younger children enjoy it read aloud with you.
What topics does it cover?
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The human body, animals, plants, space and the world around us, such as weather and the seasons. Every question gets its own page.
Is it a hardcover?
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Yes. The 100,000 Whys is a thick hardcover. The two companion books, Physics & Chemistry and Life Skills, are paperbacks.
What are the other two books?
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Physics & Chemistry is a comic about atoms, forces, light and magnets. Life Skills is a kids' edition of Murphy's Law: life lessons told as funny short stories about keeping calm and finding a way through when things go wrong.
How do the bundles work?
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Pick a book, then pick a tier above the add-to-cart button. Buy 2 Get 1 Free adds three copies to your cart and you pay for two; Buy 3 Get 2 Free adds five and you pay for three. To mix titles, add each book separately — the free copies still come off automatically at checkout.
Is it a good gift?
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Yes. It is a thick hardcover that wraps neatly, with nothing to set up on the day. Add all three books and the third is free, so one order covers three curious kids.
Do you offer a money-back guarantee?
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Yes — we offer a 60-day money-back guarantee on all products. If you're not fully satisfied, just contact us and we'll make it right.
