How to Publish a Children's Book (2026 Guide to Picture Books and Early Readers)

What are the children's book age categories?

Children's publishing is organised tightly by age, and each band has its own conventions for length, vocabulary and format. Board books are for babies and toddlers, picture books are for roughly ages 3 to 8, early readers and chapter books bridge to independent reading, and middle grade is roughly ages 8 to 12. The boundaries are blurry, but the conventions are real.

• Board books: very few words, often one idea per spread, and a sturdy physical format.
• Picture books: usually around 500 words or fewer today, with the story carried jointly by text and image.
• Early readers: short sentences, repeated words and simple structure for children learning to read alone.
• Chapter books and middle grade: mostly text, with illustration varying from occasional spot art to none.

Write to the conventions of your age band, because parents, teachers and librarians buy by age. A 2,000-word picture book aimed at four-year-olds is a common first-time mistake. You can check your manuscript with the Reading Level Checker, but remember that read-aloud picture books are written above the level a child reads alone.

How long is a picture book and how should it be structured?

Picture books are traditionally 32 pages, because printed sheets fold into multiples of 8 or 16 pages. Once you allow for the title page, copyright page and any endpapers, you typically have about 12 to 14 spreads for the story itself. Print-on-demand services accept other page counts, within their own minimum and maximum limits, so check your printer's current rules before you plan.

Plan the book as a storyboard before you commission or generate any art. Thumbnail every spread, decide where the page turns fall, and use them for surprise or a laugh. Leave room for the pictures to tell part of the story, so the text does not describe what the image already shows.

Read the text aloud, ideally to a child. Rhyme is the riskiest choice for new authors: rhyme that scans badly is painful to read aloud, and it translates poorly. Write good prose first, and rhyme only if you can make it flawless.

How does illustration work, and what are your options?

Illustration is usually the largest cost and the biggest quality risk. You can hire an illustrator, which gives a distinctive, professional result and a real creative partner, at a higher price. Or you can use AI illustration, which is cheaper and faster but needs careful work to keep characters and style consistent from page to page. Whichever route you take, check the current terms on AI-generated artwork at each store you sell through, because retailer rules on it have been changing.

If you hire, look at portfolios for children's work specifically, and agree in writing who owns the artwork, what rights you have for merchandise and sequels, and how many revisions are included. Fees vary widely, so get several quotes and use the Self-Publishing Budget Calculator to see how illustration fits your total budget. A professional marketplace, such as the one inside CruxOne, can help you find illustrators and designers.

Consistency is what makes illustration look professional. Make a character sheet showing your main character from several angles and in several expressions, and refer to it for every spread. Allow for bleed and a safe margin so nothing important is trimmed or lost in the gutter.

Why does colour printing change the economics?

Colour print-on-demand costs far more per copy than black and white. A black-and-white paperback may cost a couple of dollars to print, while a full-colour picture book can cost several times as much, depending on size and page count. That forces a higher retail price and thinner margins than a text-only book. Rates change, so check your printer's current calculator rather than relying on any figure you read.

Work out your numbers before you finalise the design. Use the Book Printing Cost Calculator, then the Book Pricing Calculator and KDP Royalty Calculator to see what you would earn at a price parents will accept. If you plan to use IngramSpark as well, the IngramSpark Printing Cost Calculator shows its costs.

There are ways to improve the maths. Fewer pages, a smaller trim or a standard-quality interior can lower the cost. A black-and-white or limited-palette early reader is much cheaper than a full-colour picture book. Selling direct or in bulk to schools can also help, since you can order author copies at cost and set your own price.

What trim sizes and formats suit children's books?

Picture books often use larger, square or landscape trims that suit full-spread illustration. Chapter books and middle grade use smaller, text-friendly trims close to adult fiction. Choose the trim before the artwork is created, because changing it later means reworking every page. Our guide to KDP trim sizes lists what is currently on offer.

Print-on-demand does not offer every specialty format. True board books, novelty formats and special papers are generally not available, so check what your printer supports before committing to a design. Hardcovers are popular for gifts and libraries, and our hardcover guide covers where they are available.

Do not forget ebooks. Fixed-layout formats keep picture-book spreads intact, but reading experience varies by device and store, and print sells far more than ebook for most picture books. Many authors publish in print first and add a fixed-layout ebook as a bonus. The cover also matters hugely in this category, so brief your designer clearly on age and tone.

How do you sell a children's book?

The buyer is a parent, grandparent, teacher or librarian, not the child. Your listing, blurb and marketing should speak to adults about what the book gives a child: a lesson, a bedtime routine, a laugh, a comfort. Mention the age range in the description and show interior pages in your images, so buyers can see the art. Our guide on writing a book blurb helps with the copy.

Children's books often sell best away from online stores. Local bookshops, school visits, library story hours, craft fairs and read-aloud events build relationships with parents and educators. Bring a teaching angle, such as discussion questions or an activity sheet, to give teachers a reason to choose your book. Our library guide covers how to approach them.

Reviews and word of mouth matter a great deal, and children's books tend to sell steadily over long periods rather than in a launch spike. A series with a recurring character is a strong way to build on that. Plan a gentle, sustained marketing routine rather than one big push.

Frequently asked questions

How many pages should a children's picture book have?

Traditionally 32 pages, which includes title and copyright pages. That leaves roughly 12 to 14 spreads for the story. Check your printer's page-count rules.

How many words should a picture book have?

Usually around 500 words or fewer today. Shorter is common for younger children, and the pictures should carry part of the story.

How much does it cost to illustrate a children's book?

It is usually the largest cost, and fees vary widely by illustrator and page count. Get several quotes and agree rights in writing.

Why are children's books expensive to print?

Full-colour print-on-demand costs several times more per copy than black and white, which raises retail prices and narrows margins.

Where do children's books sell best?

Online retail helps, but local bookshops, school and library visits and read-aloud events often drive long-term sales by reaching parents and educators.