Three illustrators can share the same desk, the same love of gouache and the same sketchbook habit, and still work in industries that barely recognise each other. Editorial, children's publishing and surface pattern meet at the point of a pencil and then pull apart in almost every other respect: the brief, the deadline, the person on the other end of the email, and what counts as finished artwork.

If you are deciding where to put your energy — or wondering why an art director keeps asking for something your picture book work already does — it helps to line them up next to each other.

Editorial: ideas at speed

Editorial illustration is the illustration of argument. You are handed a piece of writing — a comment column about rent, a feature on hospital waiting lists, a review of a debut novel — and asked for a single image that adds something the words cannot. Metaphor, wit, a visual twist, a moment of recognition.

Briefs arrive in a hurry and in odd shapes. A typical one might read: "Something on the housing ladder? Single column, 8cm by 12cm, needed by 3pm." A magazine opener might give you a week. Either way, you are usually working at a small size, often with two or three colours, and always with an eye on how the image sits beside a headline.

Practical habits worth building: keep your sketch stage short, show two or three roughs rather than one precious option, and understand cropping, bleed and how a picture reads at thumbnail size. Art directors want a flat JPEG quickly and a layered file afterwards. Answer the email the same day, even if the answer is "yes, but I'll need until tomorrow lunchtime".

For your portfolio, choose subjects you could imagine on a page. Strong silhouettes, a limited palette and one clear idea per image will do more than technical showpieces. A folder full of gentle scenes will not convince a commissioning editor that you can handle politics, business, science and grief.

Children's books: character, sequence and the long game

Publishing is slow, collaborative and deeply character-driven. A picture book runs to roughly 24 or 32 pages, and every spread is a small scene that has to carry the text and add to it. You are not only making pictures; you are pacing a reading experience shared between a child and an adult reading aloud.

Board books, picture books, early readers, middle grade jackets and non-fiction all fall under this roof, and each has its own conventions. Toddlers need clarity and simple shapes. Older readers want detail they can return to on the fifth reading.

When a publisher asks to see your work, they will usually want character studies, a finished spread or two, and a storyboard. Cover art tends to come later, with a good deal of opinion attached. Build a character sheet, draw the same figure in six emotions and six actions, and show a spread where the words and the picture do different jobs — that is the skill editors are testing for. They need to know you can hold a world together for 32 pages, not just produce one beautiful image.

Surface pattern: systems, not scenes

Surface pattern lives on objects: wallpaper, wrapping paper, textiles, stationery, packaging, ceramics. The brief often has no narrative at all. It has a repeat, a scale, a colourway and a product.

The composition problem is different from anything above. Your tile has to repeat seamlessly, read clearly at 20cm across a cushion and at two metres across a wall, and survive being recoloured six or eight ways for a seasonal range. A greetings card publisher might want a new floral for spring; a licensing agent might ask for a collection of twenty co-ordinating prints that work together as a family.

Learn the standard repeats properly — block, half-drop, brick, tossed — and keep your layers tidy and named, because someone else will eventually open that file. Test every design by tiling it on screen, printing it out, standing back and squinting. If the eye catches a stripe, the repeat is not finished.

The portfolio piece that does the work in each market

• Editorial: one sharp image with a single concept, shown at the size it will be printed alongside a thumbnail crop so the idea survives being small.
• Children's books: a character line-up, two finished spreads drawn against real text, and a storyboard covering a whole book.
• Surface pattern: a full collection — hero print, two or three co-ordinates, a colourway swap, and a mock-up on a product.

The three overlap more than the market labels suggest. Editorial illustrators move into patterns; pattern designers move into children's non-fiction. But do not let a portfolio blur into a bit of everything. Eight pieces that all point the same way will beat twenty that point in three directions.

What UK clients tend to expect

Editorial art directors work to daily and weekly cycles and value reliability over brilliance on a bad day. Confirm the deadline, flag problems early, and put the job reference or purchase order number on your invoice, because it will go to a finance department rather than the person who briefed you. Remember VAT if you are registered for it.

Publishers work six to twenty-four months ahead of publication, often through an agent, frequently with an advance split into stages and royalty statements arriving twice a year. Designers and editors will be involved at every stage, so being straightforward to work with counts for as much as the drawing.

Surface pattern buyers plan seasons ahead. Presentations matter, and production files need to be immaculate. Fees are commonly a flat sum, sometimes with royalties, sometimes as a buyout.

Contracts vary enormously, and the wording matters more than the fee. A one-off licence for a single use is not the same as broad rights across all media in perpetuity. Read the terms before signing, ask for changes where the usage is wider than the money, and take proper advice from a trade body or a solicitor if anything is unclear.

A practical way to choose

Give yourself three weeks. Take one real article and illustrate it to a deadline you set yourself. Take a folk tale or nursery rhyme and storyboard eight spreads. Take a palette you love and build a nine-tile collection with one repeat and two co-ordinates. Then notice which one you did not want to stop doing — that is your signal.

After that, tidy the portfolio: keep six to eight pieces in that direction, remove the ones that pull focus, and send a short, specific email to five people who commission that kind of work. Keep a simple spreadsheet of who you contacted, when, and what came back. Most replies will be silence or a polite no. The work is in the sending.

Photo: 1681551 / Pixabay