Best Books for Toddlers About New Sibling (2026): 5 Compared

A new baby brings big feelings, and the best books for toddlers about new sibling help the older child feel included. We compared five books by page count, edition, sibling focus and the listed reading age. Every detail below comes from the listing.

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The picks

#	Product	Shelf Score	Buy
1	You're The Biggest by Tapper	9.7/10	Buy
2	I Am a Big Sister by Church	9.6/10	Buy
3	I Am a Big Brother by Church	9.6/10	Buy
4	The New Baby by Mayer	9.5/10	Buy
5	My New Baby by Fuller	9.5/10	Buy

1

You're The Biggest by Tapper

Lucy Tapper·9.7/10 Shelf Score

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The Shelf Score runs from 9.2 to 9.8 and weighs fit for the reader or goal (35 points), contents and edition (25), value (25) and listed reading age or level (10, where the listing gives one), using only what the book listing states. How we pick ›

A 32-page hardcover keepsake about a big sibling's important job, suited to ages 2 to 5.

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Pros

• Hardcover keepsake with message space
• Reading age 2-5 stated
• Fox illustrations, 8.5x8.5 format

Cons

• 2017 publication
• No grade level is stated
• Hardcover, not a board book

2

I Am a Big Sister by Church

Caroline Jayne Church·9.6/10 Shelf Score

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The Shelf Score runs from 9.2 to 9.8 and weighs fit for the reader or goal (35 points), contents and edition (25), value (25) and listed reading age or level (10, where the listing gives one), using only what the book listing states. How we pick ›

A 24-page illustrated story for new big sisters, suited to ages 1 to 3.

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Pros

• Reading age 1-3 and grade Preschool stated
• Illustrated by Caroline Jayne Church
• 2015 illustrated edition

Cons

• 24 pages, short
• Sister only, no brother version in this pick
• 2015 publication

3

I Am a Big Brother by Church

Caroline Jayne Church·9.6/10 Shelf Score

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The Shelf Score runs from 9.2 to 9.8 and weighs fit for the reader or goal (35 points), contents and edition (25), value (25) and listed reading age or level (10, where the listing gives one), using only what the book listing states. How we pick ›

A 24-page illustrated story for new big brothers, suited to ages 1 to 3.

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Pros

• Reading age 1-3 and grade Preschool stated
• Illustrated by Caroline Jayne Church
• 2015 illustrated edition

Cons

• 24 pages, short
• Brother only, no sister version in this pick
• 2015 publication

4

The New Baby by Mayer

Mercer Mayer·9.5/10 Shelf Score

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The Shelf Score runs from 9.2 to 9.8 and weighs fit for the reader or goal (35 points), contents and edition (25), value (25) and listed reading age or level (10, where the listing gives one), using only what the book listing states. How we pick ›

A 24-page Little Critter story about a new baby sister, suited to ages 2 to 3.

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Pros

• Little Critter classic
• Reading age 2-3 and grade Preschool-2 stated
• Humorous take on big-sibling life

Cons

• 2001 publication
• 24 pages, short
• No hardcover stated

5

My New Baby by Fuller

Rachel Fuller·9.5/10 Shelf Score

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The Shelf Score runs from 9.2 to 9.8 and weighs fit for the reader or goal (35 points), contents and edition (25), value (25) and listed reading age or level (10, where the listing gives one), using only what the book listing states. How we pick ›

A 12-page board book exploring feelings about a new baby, suited to ages 1 to 3.

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Pros

• Board book, durable for toddlers
• Reading age 1-3 stated
• Explores big feelings directly

Cons

• 12 pages, fewer than the other picks
• No grade level is stated
• 2009 publication

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More picks to compare

• You Were the FirstFor ages 2 to 4: a lyrical look at firstborn feelings, 40 pages.Check on Amazon
• Berenstain Bears New BabyFor ages 2 to 4: a classic family welcome, 32 pages.Check on Amazon
• How to Be a Big BrotherFor ages 2 to 5: a gentle guide with bonus pack, 25 pages.Check on Amazon
• Lovevery Baby Is ComingFor a board book with real photos, 39 pages.Check on Amazon
• Lovevery Baby Is HereFor a board book with real photos, 35 pages.Check on Amazon

Compare the picks

Book details as published on each listing, collected 16 October 2026.

How we scored them

The Shelf Score weighs fit for the reader, contents and edition, value, and the listed reading age or level where one is given. All five listings state a reading age; four also state a grade level. How we pick explains the weights.

Scores run from 9.2 to 9.8: each book’s point total is placed on that range, so more points always means a higher score. Reading age or level counts on a list where at least one listing gives one, and a book whose listing gives none then scores zero on it. Where no listing gives one, the score is taken over the other 85 points. Books carry no warranty, so warranty is not scored.

How to choose the best books for toddlers about new sibling

Sister or brother

I Am a Big Sister and I Am a Big Brother target each role; You’re The Biggest covers both.

Match the age

My New Baby suits 1 to 3; You’re The Biggest suits 2 to 5. Check the reading age on each listing. For more early reads, see our books for toddlers about body parts.

Format

My New Baby is a board book for rough handling; You’re The Biggest is a hardcover keepsake. For more sibling stories, browse our board books for toddlers.

Before you buy

• Check the reading age on each listing.
• Pick the sibling role: sister, brother or both.
• Note the format: board book, paperback or hardcover keepsake.

Frequently Asked Questions

Which suits the youngest toddlers?

My New Baby, a board book for ages 1 to 3.

Which covers both siblings?

You’re The Biggest, for big brothers or sisters.

Which is a board book?

My New Baby, with 12 durable pages.

Still deciding? Our top pickYou're The Biggest by Tapper

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Related lists

See every picture books list and all kids and teens lists.

More lists: books for toddlers about body parts, board books for toddlers and picture books.