What is illustration?
An illustration is a picture with a job: it explains, decorates or sells. Text says "a girl rides a bicycle to school"; the illustration shows it in one look. Kinds: editorial (newspapers, magazines), book (stories, textbooks), technical/scientific (machines, plants, body parts), advertising and packaging, and information graphics.
A painting may only express the artist's feeling. An illustration must also fit a brief: a message, a reader, a size and a print method.
Drawing from life and outdoor sketching
Drawing from life means drawing what is really in front of you, not from memory or photos. It trains your eye.
- Quick gesture sketches (30 seconds to 2 minutes) catch movement of people at a bus stop or market.
- Measure with your pencil: hold it at arm's length, compare heights and widths.
- Simple shapes first: a person is ovals and cylinders; a building is boxes.
- Outdoor sketching: carry a small sketchbook, a soft pencil (2B–4B) and a pen. Choose a viewpoint, find the horizon line, keep notes on colour and light, and work fast because light changes.
Line, tone and techniques
Line shows edges. Thick lines come forward; thin lines go back. Tone shows light and form. Ways to make tone:
- Hatching: parallel lines; closer lines = darker.
- Cross-hatching: lines crossing at angles.
- Stippling: dots.
- Washes: thin watercolour or ink layers.
- Digital: layers and brushes on a tablet.
Always find the light source first. Then shade the side facing away from it and add the cast shadow on the ground.
Preparing an illustration for print
- Size: work at the print size or larger in the same proportion. Leave a margin.
- Limited colours: 2–3 flat colours plus black are cheap to print (each colour may need its own screen or plate).
- Clean line art: dark, unbroken lines reproduce well; light pencil may disappear.
- Contrast: check the picture in black and white too.
- Text space: leave room for the title or caption.
Try it: Sit near a window. Draw a cup in 2 minutes with light lines. Add hatching on the dark side. Then trace it with a black pen and colour it with only two flat colours. You now have a print-ready illustration.
Key formulas and definitions
- Illustration = picture + purpose (explain, decorate, sell)
- Stages: Look → light lines → tone → finish → print-ready
- Tone methods: hatching, cross-hatching, stippling, wash, digital
- Print rules: right size, 2–3 flat colours, clean dark lines, good contrast, space for text
- Light rule: light side bright, far side dark, cast shadow away from the light
Worked examples
1. Plan an illustration for a story line: "The old man fed the pigeons in the park."
Purpose: show the gentle scene. Sketch from life at a park or bench if possible. Composition: old man on a bench on one side, pigeons around his feet, trees behind. Light from the left: shade the right side of his coat with hatching. Finish: pen and ink plus one soft green and one warm grey for print.
2. How would you sketch a busy market outdoors in 15 minutes?
Pick a viewpoint and draw the horizon line. Block in stalls as boxes (3 min). Add 4–5 gesture figures in 30 seconds each. Mark the darkest shadows. Write colour notes. Finish details at home.
3. Change a full-colour drawing of a mango into a 2-colour print version.
Keep black for the outline and darkest shadow. Colour 1: yellow-orange flat fill for the fruit. Colour 2: green for the leaf. Show the round form with black hatching on the dark side instead of blending colours.
Common mistakes
- Drawing details before the big shape. Get proportion first, then details.
- Shading in random directions. Decide where the light is and keep shadows on the opposite side.
- Using too many colours for print. It costs more and can look messy; 2–3 flat colours are clearer.
- Copying a photo without understanding it. Drawing from life teaches form and light.