Our World in Numbers
DK Publishing
Our World in Numbers
Age Rating, Reading Level & Content Guide
Planet Earth
by DK Publishing
The text is written at a 4th grade reading level, the subject matter is intended for middle graders (ages 9–12), and the content is gentle with no concerning themes.
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About This Book
Have you ever wondered how many teeth a tiny snail can have or how hot a lightning bolt really gets? Imagine traveling the world through numbers, discovering the secrets of animals, plants, and natural wonders all around us. What incredible fact will surprise you next?
Themes
Quick Assessment
Our World in Numbers is an engaging nonfiction book for children ages 9-12 that uses fascinating statistics and vivid imagery to teach about Earth's ecosystems, wildlife, and natural phenomena. The book offers educational content appropriate for middle-grade readers, with no concerning material, making it a great resource for young learners interested in science and nature.
Why we rated Our World in Numbers 9C
Our World in Numbers is written at a Level 4-5 reading level across 192 pages. Strong independent readers around grade 5.5 can typically handle this book on their own; with parent or teacher support, Our World in Numbers works for readers up to grade 6.5.
We rate Our World in Numbers as 9C ("Clear") because the content sits in the "Gentle" range — no conflict beyond everyday childhood experiences. Across our four dimensions (emotional, physical, social, thematic) the book reads as evenly gentle; no single dimension stands out as a concern.
No specific content flags were raised by community reviewers, which is consistent with the gentle intensity score.
Thematically, Our World in Numbers explores science & nature, environmental science & ecosystems, reference, and juvenile nonfiction — these threads give the book room to mean different things to different readers.
Good fit for
- ✓ Children in the Ages 9-12 range — the maturity and attention span match the story's pacing.
- ✓ Patient readers who enjoy slower, character-driven stories.
- ✓ Kids drawn to stories about science & nature, environmental science & ecosystems, reference.
- ✓ Curious kids who prefer real-world topics over made-up stories.
Maybe not for
- ! Readers whose emotional readiness lags behind their decoding skills — this book's intensity outruns its reading level, a classic "gifted kid" mismatch.
- ! Reluctant readers who need a fast hook — the pacing here rewards patience.
For Parents
Content Intensity
9C — ClearNo conflict beyond everyday childhood experiences. Safe for sensitive readers.
Was our "Gentle" content intensity rating accurate for this book?
Reading Insights
Hook Factor
1/10A steady, thoughtful read that rewards patient readers.
Discussion Potential
1/10A lighter read — great for independent enjoyment.
Book DNA
Multi-dimensional content fingerprint
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Numbers
DK Publishing
Numbers
DK Publishing
Details
Book Length
- ISBN
- 9780593969052
- Pages
- 192
- Publisher
- Dorling Kindersley Publishing, Incorporated
- Published
- 2025
- Type
- Nonfiction