For ages 2 to 5 · by Daniel Why

100,000 Whys for Toddlers & Preschoolers

The first whys deserve true answers. 80 real questions little kids ask, each answered in words a three-year-old understands, with one big picture that shows the answer and a ten-second thing to try together.

Coming this fall · read-aloud · 80 questions · 8 worlds
Danny asleep under a blue blanket with his beagle puppy, a crescent moon in the window and a dream cloud of neatly stacked toy blocks
Why do I have to sleep?While you sleep, your body rests and grows, and your brain sorts everything you learned today, like tidying toys.
A peek inside

One question, one page, one true answer

Here are three of the 80 pages. Every answer is checked against sources like KidsHealth, the Library of Congress and NASA, then rewritten until a preschooler can say it back to you.

Danny lifts his striped shirt to peek at his belly button, next to a soft picture of a smiling baby with a curly cord
All about me

Why do I have a belly button?

Before you were born, a soft cord fed you inside your mom. Your belly button is where it was attached.

Try this: Find your belly button. Now find a grown-up’s. Everybody has one!

Fun fact: A newborn’s little cord stump dries up and falls off about one or two weeks after birth.

Danny asleep under a big blue blanket with his beagle puppy, a crescent moon in the window and a dream cloud of stacked toy blocks
All about me

Why do I have to sleep?

While you sleep, your body rests and grows, and your brain sorts everything you learned today, like tidying toys.

Try this: Close your eyes and take slow, deep breaths. Feel your body get heavy and calm?

Fun fact: Kids your age need about 10 to 13 hours of sleep a day, about half of the whole day.

Pets & farm

Why do cats purr?

Tiny muscles in a cat’s throat wiggle super fast as it breathes. That fast wiggle makes the rumbly purr.

Try this: Put your hand on your throat and hum. Feel it buzz? That’s a little like a purr!

Fun fact: A purr wiggles about 25 to 150 times every second, faster than you can clap.

Made for the “why” years

Between two and five, kids ask hundreds of questions a day. Most toddler question books answer with a joke or a cute guess. This one answers with the truth, at their level.

80

real questions from real toddlers, across 8 worlds: my body, feelings and family, home, food, pets and farm, wild animals and bugs, sky and weather, things that go.

20

words or fewer per answer, in a three-year-old’s vocabulary. No “chemicals”, no “molecules”, no “energy”. Tiny, warm, wiggle, push and pull.

10

seconds to try each activity, right where you are sitting. No tools, no mess, no prep.

2

trusted sources checked for every page, listed at the back for curious grown-ups. Same standard as our book for older kids, 100,000 Whys for Curious Kids.

Waitlist

Be the first to know when it’s out

Leave your email and we’ll send one message on launch day, with a launch-week price for waitlist families. Before that, you’ll get a free sample: three full pages to read aloud tonight.

  • Launch day email with the Amazon link
  • Three printable sample pages, sent as soon as they are ready
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