How to Write a Picture Book: From First Idea to Page Plan

A picture book looks simple, which is exactly why it is hard. To write one, start with a single child-sized problem and a character who wants something, tell the story in roughly 500 to 750 words (fewer is usually better), read it aloud until it sounds right, then cut anything the pictures can show. Finally, plan the words across a 32-page book so every page turn earns its place. That last step is the one most first-time authors skip, and it is where a story becomes a picture book.

Key takeaways#

• Most picture books are for children aged 3 to 8 and are read aloud by an adult, so write for two audiences at once.
• Aim for about 500 to 750 words. SCBWI's guidance sits in that range, and Penguin author Alan Durant puts the ceiling at 600 to 700, preferably fewer.
• Leave the description to the illustrator. If a picture can show it, cut it from the text.
• Plan the story across 32 pages, which leaves roughly 20 to 24 pages for the story itself, and use page turns as moments of surprise.
• If you self-publish on Amazon KDP, a 32-page colour book needs premium colour ink, single-page files and full bleed.

What makes a picture book different#

A picture book is not a short novel with drawings added. The words and the pictures tell the story together, and neither works fully on its own. The text gives you voice, rhythm and what characters say. The art gives you setting, expression and often the joke.

It is also a performance. A parent, grandparent or teacher reads it aloud, often for the tenth night running, while a child looks at the pictures. So it has to sound good in an adult's mouth and hold a small child's attention. SCBWI, the Society of Children's Book Writers and Illustrators, puts the reader age at 3 to 8.

That changes how you write. You are not describing a world for a reader to imagine. You are leaving gaps for an illustrator to fill.

How long should a picture book be?#

Shorter than you think. Two respected sources line up:

• SCBWI guidance, quoted by its Kite Tales editors, gives 500 to 750 words for a picture book.
• Alan Durant, writing for Penguin, says a maximum of 600 to 700 words, "but preferably fewer", because the type is large and the pictures need space.

Plenty of much-loved picture books come in well under 500 words. If your draft is 1,200 words, that is not a picture book yet. It is a picture book with a short story hiding inside it.

The page count is more fixed. Most picture books are 32 pages, because printers fold large sheets into 16-page sections called signatures, and two of those make 32. Once you take out the title page, copyright page and dedication, illustrator Juliana Castro reckons you are left with around 20 to 24 pages for the story. Books can be 24, 40 or 48 pages, but 32 is the shape most readers, bookshops and printers expect.

Step 1: Find an idea a child will care about#

Good picture book ideas come from childhood, not from lessons. A first day at school, a lost toy, a new baby, being too small, being scared of the dark. Durant's advice is that the theme doesn't need to be new, but your way into it does.

Test your idea with one question: why would a child who doesn't know you want to hear this story? "My granddaughter loves ducks" is a lovely reason to write. It isn't yet a reason for a stranger's child to listen. "A duck who is scared of water" is.

Step 2: Give your character a want#

Your main character should be a child, or an animal or creature who acts like one. The child reading should be able to step into their shoes. Adults can appear, but they shouldn't solve the problem.

Then give that character something they want and something in the way. Duck wants to join the others on the pond. Water is cold and deep and terrifying. That gap between want and obstacle is your whole story.

Step 3: Shape the story#

Most picture books follow a simple shape:

1. 1Set-up. Who is this, and what do they want? Get there within a spread or two.
2. 2Tries and fails. The character attempts to solve the problem. Three tries is a classic pattern, each one bigger or funnier than the last.
3. 3The turn. The darkest or silliest moment, then a change: an idea, a helper, a discovery.
4. 4The ending. The problem is solved, often in a way that echoes the beginning. A last-page twist or a quiet final image works well.

Keep it to one story. Subplots and big casts don't fit in 20-odd pages.

Step 4: Write for the ear#

Read every draft aloud. Then read it aloud again, slowly, the way a tired parent would at bedtime. You will hear where sentences trip and where words do nothing.

A few things that work in picture books:

• Repetition. A refrain children can join in with ("Not today, said Duck") gives a story rhythm and gives the reader a role.
• Short, concrete sentences. One idea at a time. An unfamiliar word now and then is fine; a page full of them isn't.
• Strong verbs. "Duck wobbled to the edge" beats "Duck went to the edge slowly".
• Rhyme only if it earns its place. Durant's warning is worth taking seriously: use rhyme only if the story needs it and every word moves it on. Forced rhyme is the most common reason a picture book text feels amateur. Rhythm matters more than rhyme.

If you have already read our post on show, don't tell, the same idea applies here with a twist: in a picture book, the illustrator does a lot of the showing for you.

Step 5: Leave room for the pictures#

This is where picture book writing parts company with every other kind. Don't describe what the illustration will show. No hair colour, no clothing, no "the big red barn on the green hill". If it can be drawn, let it be drawn.

The best picture books go further and let the words and pictures disagree. Here is a quick example of one spread.

Text: "Duck was not scared of the water. Not one bit."

Picture: Duck, in armbands, a rubber ring and a snorkel, standing as far from the pond as the page allows.

The words tell one story, the picture tells the truth, and the child gets the joke before the adult finishes reading. That gap is what children love.

If the joke only works because of something the words don't say, add a short illustration note in brackets: [Illus: Duck is wearing every float he owns.] Use these sparingly. One every few spreads is plenty, and only where the story would make no sense without it.

Step 6: Plan your page turns#

Now lay the story out. Draw 32 small boxes on a sheet of paper, in pairs, so each pair is a double-page spread. Mark the first few for the title page, copyright and dedication. Then split your text across the rest.

As you do it, look at where each page turn falls. The turn is the picture book's built-in moment of suspense. Put the question on the right-hand page and the answer over the page:

• Right-hand page: "Duck closed his eyes. He counted to three. And he jumped..."
• Turn the page: "...straight into a puddle."

You will almost certainly find spreads with too much text and stretches with nothing happening. That is the point of the exercise. Move, cut and rewrite until each spread has one clear moment that an illustrator could draw.

Step 7: Make a dummy and test it#

A dummy is a rough mock-up of the book. Fold and staple some paper into a 32-page booklet, write or paste your text where it falls and add stick-figure sketches. It doesn't need to be pretty. It shows you the book's pace in a way a manuscript never can.

Then read the dummy aloud to a child, or better, to several children who don't know you. Watch where they lean in and where they fidget. Children are honest critics.

After that, it is worth getting an editor's eye on the text. In 500 words every one counts, and a fresh reader will spot the line that drags or the joke that doesn't land. Our editing service starts with a free sample edit of up to 1,000 words, which covers most picture book texts, returned normally within 24 to 48 hours.

Submitting to a publisher or self-publishing?#

The writing steps are the same either way. What you do next is not.

If you are submitting to agents or publishers:

• Send the text alone, as a plain double-spaced manuscript.
• Most traditional publishers choose and pair the illustrator themselves, so you don't need to find one. Sending your own amateur art can count against you.
• Add illustration notes only where the story makes no sense without them.
• The publisher decides the page count and trim size, and you share creative decisions with an editor and art director. You pay nothing upfront.

If you are self-publishing:

• You are the publisher and the art director. You find and brief the illustrator, and you give them a note for every spread.
• You prepare everything: final text, illustrations, cover and print-ready files.
• You decide the trim size and page count, and you must do it before an illustrator draws a thing, because changing either later means redrawing.
• You keep full creative control, and you pay for illustration, layout and printed proofs upfront.

Our guide to choosing a book trim size covers the options, and what children's book illustration costs helps you budget.

Self-publishing a picture book on Amazon KDP: the print rules#

These are the KDP rules that catch picture book authors out, as of November 2026. Check them on KDP's paperback submission guidelines before you commission artwork.

• Colour ink and page count. KDP's minimum is 24 pages. But standard colour ink needs at least 72 pages, so a 32-page colour picture book has to use premium colour. Premium colour costs more per copy, which affects your list price.
• Single pages, not spreads. KDP asks for single-page files, not two-up spreads. Your illustrator can still paint across a spread; the layout just has to be split into left and right pages for upload.
• Bleed. If the art runs to the edge of the page, which it nearly always does in a picture book, it must extend 0.125 inches (3.2 mm) beyond the trim on the top, bottom and outer edges, and the file must be a PDF.
• Resolution. Images need at least 300 DPI.
• No spine text. KDP only prints spine text on books over 79 pages, so a 32-page book has a blank spine. Plan your cover with that in mind.
• Square and large trims are available. Common picture book sizes such as 8 x 10 inches, 8.25 x 8.25 inches and 8.5 x 8.5 inches are on KDP's list.

Keep important text and faces away from the gutter, the fold in the middle of each spread. A character's eye lost in the binding is a classic first-book mistake. Our children's book formatting guide goes deeper on layout, and how to publish a children's book walks through the rest of the route.

What should a self-publishing author give an illustrator before work starts?

Aeysha Mahmood

Creative Director at HMD Publishing

Expert answer

Three things: the final text, a page plan showing which words go on which spread, and the trim size. Final means final, because changing a line after the sketches are done can mean redrawing a spread. Keep character notes to what the story needs, suc...

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Aeysha Mahmood is available at HMD Publishing

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Common picture book mistakes#

• Too many words. The most common one by far. Cut until it hurts, then cut a little more.
• A moral instead of a story. Children can smell a lesson. Let the character learn something; don't tell the reader what to learn.
• The adult saves the day. The child or child-like character should solve their own problem.
• Describing the pictures. If the illustrator will draw it, you don't need to write it.
• Forced rhyme. Strong prose beats weak verse every time.
• Commissioning art before the text is final. It is the most expensive mistake in self-publishing a picture book.

When you are ready for pictures and pages#

Once the text is tight and the page plan works, you need two things: illustrations and a layout that sets your words around them. HMD can help with both. Our illustrations service matches you with an illustrator and starts with character sheets before any spreads are drawn. Children's book formatting starts from £97 ($127) for a picture book of up to 24 pages, with fixed-layout ebook and full-bleed print files prepared for KDP and IngramSpark.

But start with the words. Read them aloud tonight.