IKEA instructions for assembling furniture.

Illustration

The term “illustration” covers many visual texts, including things as mundane as a diagram for assembling furniture. In developing such instructions, the illustrator must take into account the purpose of the drawing (instruction or inventory, for example), the problem (big or small, familiar or new) and the audience (technically savvy, helpless).

Anyone who has assembled a barbecue grill out of the box knows how often these illustrations fail.