Your manuscript is done. The words are right. The story is real.
Now comes the part nobody warns you about: making it a physical object. The wrong trim size turns a thriller into a pamphlet. The wrong paper makes a textbook feel disposable. The wrong binding falls apart in someone’s hands — and they never buy from you again.
This guide covers every specification that shapes how your book looks, feels, and lasts. Whether you’re printing your first novel or your fifteenth textbook, these are the decisions that separate a professional product from an expensive mistake.
Book Sizes: The Foundation of Everything
The trim size is the first decision and the one that echoes through every other choice — margins, cover design, spine width, shipping cost. Pick wrong and you’ll reformat twice.
Here’s every standard trim size available through major print-on-demand networks, what each is built for, and when to use it.
Small Format
Pocket Book — 4.25 × 6.875 in (108 × 175 mm) The smallest standard format. Built for fiction, poetry collections, and pocket reference guides. If your book is pure text with no images, this is the format that says carry me everywhere. Mass-market paperbacks live here.
Novella — 5 × 8 in (127 × 203 mm) A standard trade size ideal for fiction, poetry, and shorter works. Clean proportions. Professional feel without the bulk. If your manuscript runs under 200 pages, this size keeps it from feeling thin.
Digest — 5.5 × 8.5 in (140 × 216 mm) One of the most commonly used sizes for fiction and nonfiction alike. Slightly wider than Novella, which gives your margins breathing room. A safe, versatile choice for nearly any text-heavy book.
Mid-Range Format
A5 — 5.83 × 8.27 in (148 × 210 mm) The international standard. If you’re selling globally — or if your audience is primarily outside the U.S. — A5 is the expected size for trade paperbacks and hardcovers. Slightly smaller than US Trade but functionally similar.
US Trade — 6 × 9 in (152 × 229 mm) The workhorse. The most common size for trade paperbacks and hardcovers in the United States. Fiction, nonfiction, memoirs, business books — if you’re unsure, this is the size to default to. It’s what readers expect to hold. Eligible for retail distribution.
Royal — 6.14 × 9.21 in (156 × 234 mm) Slightly larger than US Trade. Works well for the same fiction and nonfiction content but gives a touch more real estate on the page. Common in UK publishing. A strong choice if you want to differentiate from the standard 6×9 without going oversized.
Large Format
Comic Book — 6.625 × 10.25 in (168 × 260 mm) The traditional comic book size. If you’re printing comics, graphic novels, or any heavily illustrated work, this is the industry standard dimension. Saddle stitch or perfect bound.
Executive — 7 × 10 in (178 × 254 mm) Sits between US Trade and US Letter. Commonly used for journals, graphic novels, workbooks, and technical manuals. Gives you room for two-column layouts or wide margins with annotations. A strong textbook format.
Crown Quarto — 7.44 × 9.68 in (189 × 246 mm) Wider than US Trade, ideal for books that need two-column printing, side-by-side comparisons, or generous illustration placement. Popular for academic and reference works.
Square and Landscape
Small Square — 7.5 × 7.5 in (190 × 190 mm) Perfect for image-heavy content: children’s books, travel photography, memory books. The square format gives every image equal weight without forcing landscape or portrait constraints.
Square — 8.5 × 8.5 in (216 × 216 mm) The larger square option. Best for accommodating full-bleed images in coffee table books, art portfolios, and premium photo books.
Small Landscape — 9 × 7 in (229 × 178 mm) Ideal for photo books and product guides designed to showcase horizontal images. The landscape orientation immediately signals “visual content” to the reader.
Full-Size Format
A4 — 8.27 × 11.69 in (210 × 297 mm) The international standard for large-format printing. Used for magazines, catalogs, technical manuals, and any content that needs maximum page real estate. Eligible for retail distribution in select configurations.
US Letter — 8.5 × 11 in (216 × 279 mm) The American full-size standard. Used for hardcover manuals, image-heavy reference books, and educational materials. If your readers need to see diagrams, charts, or large photographs clearly, this is the format.
US Letter Landscape — 11 × 8.5 in (279 × 216 mm) US Letter rotated. Great for children’s books, photo books, and any project where horizontal composition matters more than vertical reading.
A4 Landscape — 11.69 × 8.27 in (297 × 210 mm) Common internationally. Perfect for photo books, art books, and landscape-oriented portfolios.
Book Bindings: What Holds It All Together
Binding isn’t decoration. It’s engineering. The wrong binding fails in the reader’s hands. The right one disappears — the reader never thinks about it because the book just works.
Paperback Perfect Bound
Page Range: 32–800 pages
The industry standard for traditional paperback books. Pages are glued to the spine and wrapped in a flexible cover. This is the most cost-efficient binding and the most widely used in print-on-demand. Suitable for novels, nonfiction, memoirs, textbooks, workbooks — nearly everything.
Eligible for retail distribution.
Paperback Coil Bound
Page Range: 2–470 pages
A flexible black plastic coil allows the book to lie completely flat when open. Essential for music books, cookbooks, notebooks, planners, and any reference material the reader needs to keep open while their hands are busy. Not available for retail distribution, but excellent for direct sales and personal use.
Paperback Saddle Stitch
Page Range: 4–48 pages
Pages are folded and stapled along the spine edge. Designed for thin publications: booklets, zines, comic book issues, coloring books, supplementary materials, and marketing collateral. Fast to produce, inexpensive, and effective for short-form content.
Hardcover Casewrap
Page Range: 24–800 pages
Traditional hardcover binding with the cover image printed directly on the rigid boards. No dust jacket. Used for textbooks, coffee table books, portfolios, and premium editions where durability and visual impact matter. The cover art is the first thing the reader sees and touches.
Eligible for retail distribution.
Hardcover Linen Wrap with Dust Jacket
Page Range: 24–800 pages
The premium option. The cover boards are wrapped in linen fabric (a cotton-poly blend with a protective acrylic coating), with text foil-stamped on the spine. A printed dust jacket with flaps wraps around the linen case. This is what first-edition fiction, memoirs, and gift books look like when they’re built to last.
Available linen colors:
- Navy — Black, Gold, or White foil stamp
- Black — Black, Gold, or White foil stamp
- Gray — Black, Gold, or White foil stamp (Eligible for retail distribution)
- Red — Black, Gold, or White foil stamp
- Tan — Black, Gold, or White foil stamp
- Green — Black, Gold, or White foil stamp
Navy and Gray are eligible for retail distribution. Other colors available for direct sales.
Wire-O (Calendars Only)
Page Range: 24–36 pages
A metal wire binding used exclusively for wall calendars. Durable, flip-friendly, and designed to hang flat without twisting or scratching.
Interior Color Options: Ink Makes the Difference
The ink you choose affects both the look and the cost of every single page. Choose based on what your content actually needs — not what sounds impressive.
Standard Black & White
Traditional black-and-white printing. Optimized for text-heavy books: novels, memoirs, workbooks, and any project where the words carry the weight. The most cost-efficient interior option.
Premium Black & White
Heavier ink coverage designed for books that include black-and-white photographs, detailed graphs, charts, or other grayscale graphics. The difference between Standard and Premium B&W is visible — Premium produces richer blacks and smoother gradients.
Standard Color
For books that are predominantly text but include some color images, charts, or illustrations. The color isn’t as saturated as Premium, but for occasional color elements scattered through a mostly-text interior, it does the job at a lower cost per page.
Premium Color
Full-saturation color printing on every page. Rich, vibrant, heavy ink coverage. This is the option for photo books, children’s books, art portfolios, cookbooks, and any project where the images need to hit as hard as the words. Every cover is printed in Premium Color regardless of your interior selection.
Paper Types: What the Reader Feels
Paper is the tactile experience of your book. It affects weight, opacity, color reproduction, and perceived quality. Readers may not know the difference between 60# and 80# stock — but their hands do.
60# Cream — Uncoated
The classic fiction paper. Warm, easy on the eyes, and designed for extended reading sessions. Used for novels, memoirs, workbooks, and any text-heavy project. The cream tone reduces glare and eye strain. This is what most traditionally published novels are printed on.
60# White — Uncoated
Versatile, economical white paper. Found in a wide range of books from fiction to nonfiction to educational materials. Brighter than cream, which makes it better for books with occasional line art or simple graphics, but more reflective during long reads.
80# White — Coated
Ultra-smooth, high-opacity bright white paper. The coating prevents ink bleed-through and produces sharp, vivid color reproduction. Used for photo books, magazines, comic books, and any project where image quality is paramount. Heavier stock means a thicker, more substantial feel in hand.
100# White — Coated (Calendar Only)
The heaviest available stock. Used exclusively for calendars to create durable, vibrant pages that withstand a full year of handling and display.
Cover Finish: The First Impression
The cover finish is the first thing a reader touches — sometimes before they even read the title. It communicates genre, quality, and intent in a fraction of a second.
Glossy
Stiff cover stock with a glossy laminate coating. Colors pop. Images are vivid and high-contrast. Glossy covers resist wear and tear well and are commonly used for children’s books, textbooks, art books, photo books, and gift books. The sheen catches light and draws the eye on a bookshelf or display table.
Matte
A smooth, non-reflective finish that gives the cover a sophisticated, understated look. Colors are slightly muted but feel more intentional. Matte finish resists fingerprints and scratches better than any other cover finish. The preferred choice for literary fiction, memoirs, business books, notebooks, and any title that wants to project quiet authority rather than shelf-shouting vibrancy.
Ebook Formats
Not every book needs to be physical. For digital distribution, two formats dominate the market.
EPUB
The universal ebook standard. EPUB files are reflowable — text adapts to whatever screen size the reader uses. Compatible with Apple Books, Kobo, Barnes & Noble Nook, and most ebook retailers. If you’re distributing digitally through retail channels, EPUB is required.
A fixed-layout format. What you design is what the reader sees — no reflowing, no adaptive text. Best for content where layout matters: textbooks with complex formatting, workbooks with precise page designs, and illustrated guides. PDF ebooks can be sold through direct sales channels and select bookstores.
Making the Right Choices
Every specification in this guide interacts with every other one. The trim size affects your spine width. The paper type affects your page count limits. The binding type determines your retail eligibility. The interior ink determines which paper stocks are available.
Start with the reader. Who are they? How will they use this book? Will they read it cover to cover in bed or flip to specific pages at a desk? Will they display it on a coffee table or stuff it in a backpack?
The answers to those questions choose your specs for you.
Related Resources
- Spine Width Calculator — Calculate your exact spine width based on page count and paper stock for accurate cover templates.
- Trim Size Comparison Tool — Compare trim sizes side by side to find the right fit for your book’s genre and audience.
- Formatting for KDP & IngramSpark Upload — File prep, margins, bleed settings, and export specs for both platforms.
Caliana Press publishes fiction, nonfiction, textbooks, and educational content across all genres and formats. For publishing inquiries, contact hello@calianapress.com.
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