How to Publish a Children's Book: A Step-by-Step Guide

Children's books look like the simplest thing to publish — a handful of words, some lovely pictures — and that appearance fools a lot of first-time authors. In practice they are one of the trickiest formats to get right, because illustration, layout, and printing all work differently from a standard novel. This guide walks the whole path, honestly.

If you want the general publishing process first, our guide on how to self-publish a book covers the fundamentals; this one focuses on what makes children's books their own animal.

Children's books are their own category

Before you write, know which age group you are writing for, because it dictates length, vocabulary, and how much illustration you need:

• Board books (ages 0–3): very few words, thick pages, simple concepts.
• Picture books (ages 3–8): the classic format, usually around 32 pages, commonly 500–1,000 words, illustrated on every spread.
• Early readers (ages 5–7): simple sentences for new readers.
• Chapter books (ages 7–9) and middle grade (ages 8–12): more text, fewer illustrations.

The younger the reader, the fewer the words and the more the pictures carry the story.

Step 1: Write for a specific age group

Match your vocabulary, sentence length, and themes to your chosen age. For picture books, remember they are read aloud, so rhythm matters, and the page turn is a storytelling tool — end pages on a note that makes the reader want to turn. Read your draft aloud to a child if you can; it exposes what works instantly.

Step 2: Illustration is your biggest decision — and cost

For picture books, the art is not decoration, it is half the book. Unless you are a professional illustrator, hire one. This is the largest expense in most children's books, and it varies widely with the illustrator's experience, the number of illustrations, and the complexity of each. (Illustration costs range widely — get quotes from several illustrators rather than relying on a single figure.)

Two things to get right: choose a style that fits your age group and story, and make sure your contract gives you full ownership of the finished illustrations. Never leave rights ambiguous.

Step 3: Format as fixed-layout, not reflowable

A novel is reflowable — text rearranges to any screen. A picture book is the opposite: text and images are locked together on each page, so you need fixed-layout formatting. The print interior is full color, and the ebook version, if you make one, uses a fixed-layout format that preserves the design. This is more technical than novel formatting, which is why many children's authors hand it off.

Step 4: Choose your format and trim size

Children's books use their own trim sizes — square formats like 8.5" x 8.5" are popular for picture books, along with landscape and larger sizes. Hardcover is especially popular for children's titles because parents and gift-buyers value durability.

Step 5: Choose your publishing platform

Amazon KDP prints full-color paperbacks and hardcovers and supports fixed-layout children's ebooks. Bear in mind that color printing costs noticeably more per page than black-and-white, which affects your pricing. For bookstore and — importantly — library and school distribution, IngramSpark is worth considering, since libraries and schools are major buyers of children's books; our guide on KDP vs IngramSpark covers the trade-offs.

Step 6: Sort your ISBN and metadata

Set up your ISBN as you would for any book, then write your metadata for the people who actually buy children's books — parents, grandparents, and teachers. Your categories, keywords, and description should speak to gift-givers and educators, not just describe the plot.

Step 7: Price for the printing reality

Because color printing raises your per-copy cost, children's books are generally priced higher than a comparable novel. Work out your printing cost first, then price to leave a sensible royalty. Hardcover editions carry higher costs and higher prices, which the gift market generally accepts.

Step 8: Market to the real buyers

Children do not buy books; adults do. Your marketing targets parents, grandparents, teachers, and librarians. Read-aloud videos, school and library visits, and positioning the book as a gift all work well. Our guide on how to market a self-published book covers the fundamentals, which apply here with that audience in mind.

Doing it yourself vs getting help

The two genuinely hard parts of a children's book are the illustration and the fixed-layout formatting. Many authors write the story themselves and bring in professionals for those two pieces. A full children's book publishing service handles illustration, layout, print setup, and distribution together, which removes the most technical hurdles — worth weighing if the design side feels out of reach.

The bottom line

Publishing a children's book comes down to writing for a specific age, investing in professional illustration, formatting it as fixed-layout, planning for color-print costs, and marketing to the adults who buy. Get the art and the layout right, and you have a book that earns its place on a child's shelf.