# Low-content vs medium-content books on KDP: what changes

Source: https://kdpbook.io/guides/low-content-vs-medium-content-books-on-kdp · Updated 2026-09-28

What KDP counts as a low-content book, why coloring and puzzle books aren't, and what the low-content box changes for ISBNs, distribution and Kindle.

Short answer: Low-content books are books KDP describes as having minimal, repetitive interior content meant to be filled in: notebooks, planners, journals, logbooks. Tick the low-content box for them: they need no ISBN, can't use the free KDP ISBN, can't join a series and can't use Expanded Distribution. Puzzle, coloring and children's books aren't low-content, and “medium-content” isn't a KDP term.

Key numbers:
- Barcode box without an ISBN: 2 × 1.2 in on the back cover
- Free KDP ISBN: not available for low-content books
- Expanded Distribution and series: not available
- 4 of kdpbook’s 36 book types are low-content

Sections: What is a low-content book? · Are puzzle and coloring books low-content? · What the low-content box changes · What are medium-content books? · Which one is your book?

The low-content box changes how a book is published, so it matters which side of the line your book falls on. Below: KDP’s definition and examples, what the box changes, what sellers mean by medium-content, and a quick test for your own book.

## What is a low-content book on KDP?

KDP defines low-content books as books with minimal or no content on the interior pages, generally repetitive and designed to be filled in by the reader. Its examples: notebooks, planners, diaries and journals, prompt journals, logbooks, coupon books, score cards, crafting templates and blank sheet music.

## Are puzzle and coloring books low-content?

No. KDP lists these as **not** generally low-content: novels, non-fiction, **puzzle books**, **coloring books**, photography books, sheet music, manuals, textbooks and **children’s books**. A coloring book or a word-search book is published like any other book.

## What the low-content box changes

- **ISBN**: publish without an [ISBN](https://kdpbook.io/glossary/isbn) or with your own; the free KDP ISBN isn’t offered. Without an ISBN, KDP prints a [barcode](https://kdpbook.io/glossary/barcode-area) in a 2 × 1.2 in white box on the back cover, so keep that area clear. See [free KDP ISBN vs your own](https://kdpbook.io/guides/kdp-isbn-free-vs-your-own).
- **Look Inside**: not available without an ISBN, so buyers can’t preview the interior (A+ Content can show it instead).
- **Expanded Distribution**: not supported for low-content books, whatever the ISBN option (see the full list below).
- **No series, no scheduled release date, no Kindle edition.** KDP lists blank journals among books not suited to Kindle.

[Expanded Distribution](https://kdpbook.io/glossary/expanded-distribution) has its own content rules, set by the distributors, and they reach well beyond low-content books:

KDP’s Expanded Distribution page says its distributors “may not accept books according to their guidelines and policies”, and that content not currently accepted includes, but is not limited to:

- **paperbacks with frequent lined or blank pages (journals, notebooks, planners, calendars, agendas, organizers)**
- summaries of, or insight into, another published book without the original author’s permission
- interiors that need a high concentration of ink
- public domain content
- **coloring books**
- poorly translated content
- content rebranded or re-released with significant metadata changes
- content excessively reused, recycled or repeated within or across books

The same list continues with a table of topics: sport, cryptocurrency, cookbooks, travel guides, Bitcoin, keto, biographies, options trading, intermittent fasting, cryptography, Python, plant-based, guided exercise, NFTs, Mediterranean, word scramble, **workbooks**, dark psychology, motivational quotations, handwriting practice, manipulation, manifestation, scissor skills, mind control, mindfulness, **activity books**, hypnosis, fitness and dieting, drawing books, narcissism, ChatGPT, **puzzle books**, crafting books, word search, trivia books, Cricut, sudoku, how-to books, knitting, crossword, title count over 99, crocheting, maze, joke books, cross stitch. Hardcovers aren’t eligible at all. Source: [KDP Help: Expanded Distribution](https://kdp.amazon.com/en_US/help/topic/GQTT4W3T5AYK7L45), read on October 4, 2026. Per-type status: [KDP Expanded Distribution](https://kdpbook.io/glossary/expanded-distribution#by-type).

The box is in the Categories section of the paperback or hardcover details, and the ISBN choice can’t be changed after publishing.

## What are medium-content books?

“Medium-content” isn’t a KDP term; sellers use it for books between the two: activity books, workbooks, puzzle books. Because their pages carry real, non-repeating content, KDP treats them as regular books: ISBN (the free one is fine), Look Inside, series allowed. Guided journals sit on the line: KDP names prompt journals among its low-content examples, so one that is mostly writing space under a short prompt belongs in the low-content category, while one whose pages carry substantial content is closer to a workbook. See [how to make a journal for KDP](https://kdpbook.io/guides/how-to-make-a-journal-for-kdp).

In a puzzle book, every puzzle is different and has its own solution. You can see what that content looks like with our free [word search maker](https://kdpbook.io/kdp/word-search-maker), [sudoku maker](https://kdpbook.io/kdp/sudoku-maker) and [maze maker](https://kdpbook.io/kdp/maze-maker), which print pages and answer keys from the generators kdpbook’s puzzle books use.

## Which one is your book?

- Every page repeats the same template (lines, grid, tracker, planner spread)? Low-content: tick the box.
- Pages carry unique content: puzzles, illustrations, text, exercises? Not low-content: publish with an ISBN.
- Mostly writing space under a different short prompt on each page? KDP lists prompt journals as low-content, so ticking the box is the careful choice.

In kdpbook, only [planner & logbooks](https://kdpbook.io/book-types/planner-and-logbook-maker), [lined notebooks](https://kdpbook.io/book-types/lined-notebook-interior-maker), [sketchbooks](https://kdpbook.io/book-types/sketchbook-interior-maker) and [password books](https://kdpbook.io/book-types/password-book-maker) are flagged as low-content; the [guided journal](https://kdpbook.io/book-types/guided-journal-maker), [puzzle book](https://kdpbook.io/book-types/puzzle-book-generator) and [coloring book](https://kdpbook.io/book-types/ai-coloring-book-generator) types are regular books, and the export sheet tells you which box to tick. For a guided journal, weigh KDP’s prompt-journal example above before you publish.

Comparing low-content tools? Read [kdpbook.io vs LowContent.ai](https://kdpbook.io/compare/lowcontent-ai-alternative) and [kdpbook.io vs KDP Builder](https://kdpbook.io/compare/kdp-builder-alternative).

Sources (checked 2026-09-28):
- [KDP Help: Low-content Books](https://kdp.amazon.com/en_US/help/topic/GGE5T76TWKA85DJM)
- [KDP Help: ISBNs](https://kdp.amazon.com/en_US/help/topic/G201834170)
- [KDP Help: Expanded Distribution](https://kdp.amazon.com/en_US/help/topic/GQTT4W3T5AYK7L45)
- [KDP Help: Guide to Kindle Content Quality](https://kdp.amazon.com/en_US/help/topic/G200952510)

## Questions

Q: Do low-content books need an ISBN on KDP?
A: No. You can publish a low-content book without an ISBN, or with your own. The free KDP ISBN isn't available for low-content books.

Q: Is a puzzle book low-content?
A: No. KDP lists puzzle books, coloring books and children's books as not generally low-content, even though some of them have little text.

Q: Can I publish a low-content book on Kindle?
A: No. Low-content books are print only: KDP lists blank journals among books not suited to Kindle, because they are meant to be written in.

Q: Is a guided journal low-content?
A: It depends on the pages. KDP lists prompt journals among its low-content examples, so a journal that is mostly writing space under a short prompt fits the category. A journal whose pages carry substantial, non-repeating content (exercises, explanations, readings) is closer to a regular book. KDP publishes no exact threshold.