A good coloring book feels like one book, not a stack of unrelated pictures. That comes from a few decisions made early: who it’s for, what ties the pages together, and the paper it will be printed on. This guide walks through them in order, from the first idea to a printed proof in your hands.
1. Decide who it’s for
The person holding the crayons decides almost everything else: how thick the lines are, how big the shapes are, and how many pages they’ll sit through.
- Ages 2 to 5: one big subject per page, thick outlines and large spaces to fill. Choose Simple.
- Ages 6 to 10: a subject with a simple background and a bit of action. Choose Cartoon or Storybook.
- Teens and adults: fine lines, patterns and full scenes that take an evening to finish. Choose Detailed.
If the book is a gift, write the name of the person down. You’ll use it for the theme, the cover and maybe a page with their name in big letters.
2. Choose a theme and plan the pages
A theme is what makes someone pick your book over another one: “ocean animals”, “cozy cottages”, “dinosaurs at school”. Narrow beats broad. “Animals” is a hard sell; “baby farm animals with their mothers” is a book.
Then decide how many pages you need:
- A printout for one afternoon: 5 to 10 pages.
- A gift or class book: 20 to 30 pages.
- A book to sell: usually 30 to 50 drawings. Amazon KDP needs at least 24 pages for a paperback, and with blank backs every drawing takes two.
Write the list of page ideas before you draw anything. Vary them inside the theme: different animals, places, times of day, close-ups and wide scenes. A list keeps you from drawing the same idea five times and shows the gaps early.
3. Draw the pages
A clear prompt names who is in the picture, what they’re doing and where. Add one or two details you care about and leave the rest to the drawing.
- Vague: “a cat”.
- Clear: “a fluffy cat reading a book in an armchair next to a window with rain outside”.
Use the same style for every page in the book. Mixing a bold cartoon page with a fine, detailed one makes the book look assembled from different places. If you want a main character on every page, describe them the same way each time.
Choose the orientation per page: portrait for one subject or a tall scene, landscape for wide ones like a train or a beach. Most books are portrait, so keep landscape pages for the scenes that need it.
4. Check every page
Look at each page as if you were about to color it. A page is ready when:
- The outlines are closed, so color stays where it belongs.
- It’s pure black lines on white, with no gray shading or filled black areas that waste ink.
- Any lettering is spelled right.
- The level of detail matches the rest of the book and the age you chose.
When a page is almost right, fix just the part that’s off instead of starting over. When it isn’t, redo it. A page that fails to draw gives its credits back automatically.
5. Pick a trim size and margins
The trim size is the size of the finished page. The usual choices:
- US Letter (8.5 × 11 in) or A4: for printing at home or school, and the most common size for coloring books on Amazon.
- 8.5 × 8.5 in: a square book that suits younger kids and square pages.
- 6 × 9 in: a smaller book for travel and handbags.
Margins keep the drawing away from the edge so nothing is cut off when the book is trimmed, and away from the spine so nothing disappears into the binding. Printers can’t cut perfectly straight, so a drawing that runs to the very edge needs bleed: an extra eighth of an inch (3.2 mm) of artwork past each edge. Simplest is to keep every drawing inside the margins and skip bleed altogether.
6. Leave the backs blank
Markers bleed through paper. Most coloring books print each drawing on its own sheet with a blank back, so a page colored with markers doesn’t ruin the one behind it. It doubles the page count, which matters for price and spine width, so decide before you make the cover.
If the book is for crayons or colored pencils only, double-sided printing is fine and halves the paper.
7. Make the cover
A printed cover is one wide image: back, spine and front. Its size depends on the trim size and on how thick the book is, which comes from the page count and the paper. On KDP’s white paper each page adds about 0.00225 inches to the spine, so a 100-page book has a spine just under a quarter of an inch wide.
- Front: the title, big enough to read as a thumbnail, and a colored version of one of your pages so buyers see what’s inside.
- Spine: the title, but only if the book is thick enough. KDP allows spine text only on books with more than 79 pages.
- Back: a few sample pages, a line about who the book is for, and space for the barcode.
8. Export and print a proof
Export the interior as one PDF, and the cover as its own PDF if you’re publishing. Then look at it on paper before anyone else does:
- At home: print three or four pages on your printer. Thin lines that looked fine on screen can turn gray or broken on paper.
- On KDP: use the online previewer to check that nothing crosses the margins, then order a printed proof copy. It costs about the same as one book and is the only way to see the real paper and colors.
Checklist before you publish
- Every page has closed outlines, no gray shading and correct spelling.
- All pages use the same style and a similar amount of detail.
- The trim size and margins are the same on every page, unless a page needs to differ.
- Blank backs are on if the book is meant for markers.
- The cover was made after the final page count, and its spine fits that count.
- You’ve seen a printed proof.
- If you’re selling, you’re on a plan that allows it. See pricing.
Ready to start? Try one page from your list on Create, or browse the free printables to see what clean, print-ready line art looks like.