The best books about planets for preschoolers combine simple introductions to the solar system with formats suited to young children. 8 Little Planets is best for families looking for a board book with planet-shaped cutouts, while My Little Book of Planets suits readers drawn to rhyme. There’s No Place Like Space! and National Geographic Little Kids First Big Book of Space offer broader space-themed choices, and I Spy Space is best for children who enjoy search-and-find activities.
| Book | Format | Best suited to |
|---|---|---|
| 8 Little Planets | Board book | Exploring planet cutouts |
| There’s No Place Like Space! | Hardcover | A playful solar-system introduction |
| National Geographic Little Kids First Big Book of Space | Hardcover | Children interested in a broad space topic |
| I Spy Space | Paperback | Search-and-find play |
| My Little Book of Planets | Board book | Rhyming planet reading |
8 Little Planets: A Solar System Book

This board book introduces the solar system through a planet-focused title and unique planet cutouts. The cutout design is a clear point of difference for preschoolers who like to explore a book’s shape and pages as they read. Chris Ferrie is the author, and Lizzy Doyle is the illustrator.
Best for: Families seeking a hands-on-feeling board-book format centered on the planets. Choose this if cutouts are likely to hold a child’s interest during shared reading. Its compact board-book format also distinguishes it from the two hardcover options below.
Consider: The listing identifies unique cutouts but does not specify other interactive features or provide an age recommendation. Check the product details if you need those specifics.
There’s No Place Like Space!

There’s No Place Like Space! All About Our Solar System is a hardcover by author Tish Rabe and illustrator Aristides Ruiz. Its subtitle makes the scope clear: it is about the solar system, rather than only one planet. The familiar, playful title may appeal to families seeking an inviting read-aloud choice.
Best for: Preschoolers who are ready for a broader introduction to the solar system in a hardcover format. Choose this if you want the subject to extend beyond a simple list of planets.
Consider: The supplied product information does not describe the text’s reading level, length, or specific activities. It is a hardcover, so it may be less suited than a board book to children who need a sturdier, smaller-format book.
National Geographic Little Kids First Big Book of Space

This hardcover is a space-themed choice for young children. Its title positions it as a broad introduction to space, rather than a book limited to planets. Catherine D. Hughes is the author, and David A. Aguilar is the illustrator.
Best for: Preschoolers whose curiosity includes planets and the wider topic of space. It is a good comparison choice when a caregiver wants a broader subject focus than a planets-only title. The hardcover format may also suit a shared-reading collection.
Consider: The product information provided does not list particular topics, activities, or reading-level details. If you need a book focused specifically on planet names or features, compare its contents with a planet-centered title before choosing.
I Spy Space: A Search-And-Find Book

I Spy Space: Spot Rockets, Planets, Astronauts & More! is a paperback search-and-find book by Marlies Larch. The title names planets among the things children can look for, alongside rockets and astronauts. That activity-based approach makes it different from a straightforward solar-system introduction.
Best for: Children who enjoy finding and naming objects on a page. Choose this if you want a space-themed activity that can invite participation during quiet time or shared reading.
Consider: The book covers more than planets, so it may not be the strongest fit if your main goal is a focused introduction to the solar system. The listing does not provide specific details about puzzle difficulty.
My Little Book of Planets

My Little Book of Planets is a rhyming solar-system board book from the Penguin Early Learning Series. The listing identifies it as being for children ages three and up. Its planet-specific subject and rhyme make it a distinct option for preschool families comparing simple formats.
Best for: Children ages three and up who enjoy rhythm and repeated read-alouds. Choose this if you want a board book specifically described as rhyming and focused on the solar system.
Consider: The product details provided do not describe its illustrations or the amount of information on each planet. Choose a broader space title if you want coverage beyond planets and the solar system.
Buying Guide: How To Choose A Planet Book
Should you choose a board book, hardcover, or paperback?
Start with the format your child is most likely to use comfortably. The two board books here are 8 Little Planets and My Little Book of Planets. The hardcover options are There’s No Place Like Space! and National Geographic Little Kids First Big Book of Space. I Spy Space is paperback. The listings do not provide comparative durability information, so consider the format rather than assuming one will withstand more use.
Does your child want facts, rhyme, or an activity?
For a planet-centered title, compare the two books whose names focus directly on planets. Choose My Little Book of Planets for its stated rhyming format or 8 Little Planets for its named cutouts. For a more activity-led experience, I Spy Space is explicitly a search-and-find book. The two broader space titles may suit children curious about topics beyond planets.
How narrowly should the book focus on planets?
If you want planets to be the main subject, begin with a planet-centered title. If your child is interested in space generally, a broader book may be a better match. Look at the complete listing details for contents and reading guidance, since those specifics were not included in the supplied product information.
Frequently Asked Questions
What is a good first planet book for a preschooler?
My Little Book of Planets is identified as a rhyming board book for ages three and up. 8 Little Planets is another board-book option, with unique planet cutouts.
Which choice is best for a child who likes activities?
I Spy Space is described as a search-and-find book featuring planets, rockets, astronauts, and more.
Which books cover more than planets?
There’s No Place Like Space! is about the solar system, while National Geographic Little Kids First Big Book of Space has a broader space focus in its title.
Are all five books board books?
No. Two are board books, two are hardcovers, and I Spy Space is a paperback.
Which book is specifically listed for ages three and up?
My Little Book of Planets is the title whose supplied listing specifies ages three and up.