Art books, photo books and oversized formats
In a novel the page is a container for words, and almost nothing about the paper matters. In an art book, a photo book or an illustrated monograph, the page is the product. Everything below is a decision a text author can skip and you cannot.
Decide the format before you design anything
A big page is the obvious answer, and it has four costs attached.
- Cost per copy rises with area. More paper and more ink on every copy, forever, which flows into the price a reader sees. See Pricing a self-published book.
- Shipping moves up a band. Postage is priced in steps by size and weight, not smoothly, and one large format can push every parcel into the next step.
- It does not fit a standard shelf. Shop and library shelving is built for conventional heights. An oversized book gets laid flat, shelved elsewhere, or declined.
- Not every printer offers it. Trim lists differ between companies, and a size available in paperback at one may not exist there in hardcover.
Act on that last point first: confirm the trim exists at the printer you will actually use, in the binding you actually want, before a single spread is laid out. Artwork proportions are not portable. A book composed for a square page cannot be re-cut to a taller rectangle — the images are the wrong shape, and the crop destroys the composition that justified the format. Square, tall and pocket-sized: leaving the standard trims sets out the full trade, and Where to print: KDP, IngramSpark, Lulu and B&N Press covers who does what.
Color is the central problem
A screen makes color with light. A page makes it by absorbing light with ink. The range a printed page can reach is smaller than the range your monitor shows, and no setting closes the gap.
- Saturated and neon colors flatten. The electric orange and the acid green that carry an image on screen come back muted.
- Deep shadows fill in. Detail you can just make out at the dark end of a photograph turns into one mass of near-black.
- Everything reads darker. A backlit image looks brighter than the same image reflecting room light. Why your cover prints darker than it looked explains the mechanism.
In a text book that is a minor annoyance. In a book of pictures it is the whole quality question, which gives this guide its one rule with no exception: an art book gets a physical proof before it is published. Not a PDF check, not a calibrated monitor — a printed copy in daylight, for the reasons set out in Proofing on screen or on paper. Order the proof. Then read it in daylight is the procedure, and Color inside the book, and what it costs covers what color pages do to the price.
Paper decides how much detail survives
Uncoated stock, the ordinary paper a novel is printed on, is absorbent. Ink spreads slightly into the fibers, which softens edges and lifts the darkest tones. For line drawings, diagrams and type that is fine. For photographs it is the difference between a crisp image and a soft one.
Coated stock holds ink on the surface, so fine detail and deep tones survive. It is also not offered by every print-on-demand service, and where it exists it may be tied to particular trims or bindings. Check it at your printer the same way you checked the trim, and see Paper weight, cover finish, and how the book feels.
Resolution is measured at printed size
This is where oversized books go wrong quietly. An image is not high resolution or low resolution on its own. It has a pixel count, and it has a size on the page, and only the two together mean anything.
The measure is DPI at printed size: pixels divided by printed inches. Under 200 DPI is a warning. One file changes value as it changes size — an image that lands at 300 DPI filling a 6 × 9 page is only 200 DPI enlarged to fill a page half again as wide and half again as tall. Nothing about the file changed. The page got bigger.
The numbers get large quickly. A 6 × 9 front panel with bleed is 6.125 × 9.25 in, which is 1,838 × 2,775 px at 300 DPI, and that is the small format. A full-page plate on an oversized page needs proportionally more in both directions, which is why web downloads that look acceptable in a paperback fall apart when the page grows. Resolution: why a good-looking image prints badly has more.
In the Cover Maker. Placed art is checked against its printed size rather than its pixel count: anything under 200 DPI is flagged, and there is one-click enlargement to 300 DPI (ordinary resampling in the browser — no AI, nothing uploaded). Enlarging recovers the number, not the detail, so shoot or scan larger where you can. Start your cover → · about the Cover Maker
The gutter eats the middle of a spread
An image crossing from the left page to the right disappears into the fold, and how much disappears depends on the binding and how far the book opens. A perfect-bound book does not lie flat, so part of the middle curves away from the reader even where it is still on the paper.
The rule is absolute: nothing that matters belongs in the fold. Not a face, not a caption, not a signature. Compose a spread so the fold falls through sky, ground, shadow or empty space, and accept that a centered subject is the one thing a two-page spread cannot do.
The inside margin works against you as well, because it grows with page count — up to 300 pages needs 0.5 in of gutter, 301 to 500 needs 0.625 in, and it keeps climbing. Margins and gutters has the table, and Photo inserts and plate sections covers grouping images instead of running them through the text.
What our tools do, and where they stop
The Interior Formatter places full-page plates, bleed images and two-page spreads, checks every image against the size it will be printed at, and carries alt text through to the EPUB. For an illustrated book — a memoir with photographs, a technical book with figures, a novel with plates — that is the job done from one manuscript, with the final page count flowing to the cover.
A designed art book is a different animal. Where every spread is a unique composition, with images bled off three edges and captions placed by eye, it is laid out one spread at a time in page-layout software, then brought in as full-page images or handed to a designer outright. Knowing which of the two books you are making, before you start, saves more time than anything else here.
Make your cover
The Cover Maker is free to use: name your book, bring your artwork, and it draws the full wrap — front, spine and back — to your printer's own measurements. You only pay when you want the files without the preview watermark.
Next: Color inside the book, and what it costs · More: Square, tall and pocket-sized: leaving the standard trims · Photo inserts and plate sections · Resolution: why a good-looking image prints badly