Illustration portfolio glossary

Essential illustration and portfolio terms explained in plain language. Everything you need to understand when building and managing your illustration portfolio online.

A B C D E F G H I L M P R S T W

A

Above the fold

The visible area of your portfolio before a visitor scrolls. Place your most striking illustration here. Art directors and publishers form their first impression in seconds.

Alt text

A written description attached to an image for accessibility and SEO. Describe the subject, medium, and style of your illustration so search engines can index it and screen readers can convey it.

Art director

The person at a publisher, agency, or studio who commissions and oversees illustration work. Art directors review portfolios to find the right visual style for a project. Your illustration portfolio is your pitch to them.

Aspect ratio

The proportional relationship between an image's width and height. Illustrations come in all shapes — tall book covers, wide panoramic scenes, square spot illustrations. Gallery layouts should accommodate varying ratios gracefully.

B

Brush pack

A collection of custom digital brushes for software like Procreate, Photoshop, or Clip Studio Paint. Many illustrators create and sell brush packs as digital products through their portfolio store.

Bounce rate

The percentage of visitors who leave your site after viewing only one page. A high bounce rate on your illustration portfolio may mean your landing page or gallery is not engaging enough to explore further.

Brief

A document from a client or art director outlining the requirements of an illustration project. Includes details like subject, dimensions, color palette, audience, and delivery format.

C

Character design

The process of creating original characters with distinct visual identities. Character sheets typically include front, side, and expression views. A staple of game, animation, and children's book illustration portfolios.

Color palette

The set of colors used in an illustration or across a body of work. A cohesive color palette throughout your portfolio creates visual unity and strengthens your artistic identity.

Commission

A paid illustration project created to a client's specifications. Your portfolio should make it clear how to request a commission, what your process involves, and what deliverables the client receives.

Custom domain

A unique web address like yourname.com that replaces the default subdomain. A custom domain lends credibility when submitting your illustration portfolio to publishers or studios.

Concept art

Visual development artwork created during the early stages of a film, game, or product. Concept artists design environments, characters, props, and moods before production begins.

D

Digital illustration

Artwork created using digital tools such as a drawing tablet and software like Procreate, Photoshop, or Clip Studio Paint. The dominant medium for commercial illustration today.

Digital download

A file delivered electronically after purchase. Illustrators sell art prints, brush packs, coloring pages, and tutorial files as digital downloads through their portfolio store.

DPI / PPI

Dots per inch and pixels per inch. For web display, 72 PPI is standard. For print reproduction of illustrations, 300 DPI minimum ensures crisp, detailed output at any size.

E

Editorial illustration

Artwork created to accompany articles, essays, or opinion pieces in magazines, newspapers, and online publications. Editorial work demands quick turnarounds and strong conceptual thinking.

E-commerce

Selling products directly from your website. Illustrators use e-commerce to sell prints, originals, brush packs, and digital files. Portfoliobox includes a store with 0% commission on all sales.

F

Favicon

The small icon displayed in the browser tab next to your page title. Upload a tiny version of your logo or a signature mark to make your illustration portfolio look polished.

Fan art

Illustrations of characters or worlds from existing media, created by fans. Popular for building an audience on social media, but check licensing before selling fan art as prints.

Full-bleed

An image that extends to the very edges of the page with no margins. A full-bleed layout lets large-scale illustrations fill the screen and command attention.

G

Gallery

A page or section dedicated to displaying a collection of illustrations. The backbone of every illustration portfolio. Choose layouts that show your artwork without cropping or compressing detail.

Giclée print

A high-quality fine art print made with archival inks on heavy paper or canvas. The gold standard for selling illustration reproductions. Giclée prints command higher prices than standard poster prints.

H

Hero image

The large, prominent illustration at the top of a page. Your hero image should be your most captivating piece — the one that makes a visitor want to see more.

Half-tone

A printing technique that simulates continuous tone through patterns of dots. Half-tone effects are popular in retro and comic-style illustrations.

Horizontal scroll

A gallery layout where visitors scroll sideways through artwork. Effective for panoramic illustrations, sequential narratives, or comic strip presentations.

I

Ink wash

A traditional technique using diluted ink applied with a brush to create tonal gradations. Ink wash work scans beautifully and translates well to digital portfolios and print reproductions.

Image optimization

Reducing file size while preserving visual quality for faster page loading. Critical for illustration portfolios where detailed, high-resolution artwork can significantly slow down a site.

L

Lightbox

An overlay that displays an enlarged version of an illustration on top of the page. Lets visitors inspect fine details, line work, and textures at full resolution.

Line art

Illustration created primarily with lines and minimal or no shading. Line art is foundational to many styles — from comic book inking to architectural illustration and coloring book pages.

Licensing

Granting permission to use your illustration for specific purposes, media, and time periods. Understanding licensing is essential for pricing your work correctly and protecting your rights.

M

Masonry layout

A gallery layout where illustrations of different aspect ratios stack together like bricks, using space efficiently. Ideal for portfolios containing both tall book covers and wide panoramic scenes.

Meta tags

HTML data that tells search engines what your page is about. Include terms like 'children's book illustrator' or 'concept artist' in your meta titles to attract the right clients.

Mockup

A realistic preview showing how your illustration would look applied to a product — a book cover, poster, phone case, or packaging. Mockups help clients visualize the end result.

P

Portfolio curation

Selecting and arranging your best illustrations for presentation. A focused illustration portfolio with 15-20 strong pieces outperforms a sprawling collection of everything you have ever drawn.

Process documentation

Showing the stages of creating an illustration — from thumbnail sketches and rough drafts to color studies and the final piece. Art directors value seeing your creative thinking, not just the end result.

Print-on-demand

A fulfillment model where products are printed and shipped only when ordered. Illustrators use print-on-demand to sell art prints, postcards, and merchandise without holding inventory.

R

Raster image

A pixel-based image format like JPEG or PNG. Most finished illustrations are delivered as raster files. Unlike vector files, raster images lose quality when scaled up beyond their original resolution.

Responsive design

A website that adapts automatically to different screen sizes. Essential for illustration portfolios, since art directors might review your work on a desktop monitor, tablet, or phone.

Reproduction

A copy of an original illustration, typically a giclée print or offset lithograph. Selling limited-edition reproductions is a common revenue stream for illustrators.

S

SEO

Search Engine Optimization. For illustrators, this means using relevant keywords, alt text on artwork, clean URLs, and meta descriptions so art directors and publishers can discover your illustration portfolio on Google.

Sketch

A rough, preliminary drawing used to plan composition, poses, or concepts before committing to a finished illustration. Including sketches in your portfolio shows your process and problem-solving ability.

Slideshow

A gallery layout that presents illustrations one at a time with transitions. Creates a focused viewing experience that lets each piece command full attention — ideal for narrative or sequential work.

SSL certificate

Security technology that encrypts data between your portfolio and its visitors. Displayed as the padlock icon in the browser. Included automatically on all Portfoliobox plans.

T

Template

A pre-designed portfolio layout you customize with your own illustrations and text. Choose a template that prioritizes large image displays and clean navigation over decorative elements.

Thumbnail

A small preview of an illustration in a gallery grid that links to the full-size image. Consistent, well-cropped thumbnails make your illustration portfolio look cohesive and professional.

Time-lapse

A recording of an illustration being created, sped up to show the full process in minutes. Time-lapses are highly shareable and give potential clients a window into your working method.

W

Watermark

A semi-transparent overlay of your name or logo on an illustration to discourage unauthorized use. Keep watermarks subtle enough to protect without ruining the viewing experience.

World-building

The process of designing cohesive fictional environments, cultures, and ecosystems for games, films, or books. World-building portfolios typically include maps, architecture, flora, fauna, and cultural artifacts.

Workflow

Your end-to-end process from brief to final delivery. Includes sketching, feedback rounds, coloring, exporting, and uploading to your portfolio. A documented workflow helps clients understand your timeline.