Texts that instruct tell you how to do or make something. For example, written directions tell you how to get to a particular place.

Texts that explain may tell you the background about something or about how something works. For example, a book might explain how electricity was discovered and how it is generated.

Texts that describe help you imagine how something (or someone) looks, sounds, smells, tastes or feels. For example, a holiday postcard might include a description of the place you are staying.

Texts that persuade try to make you do something. For example, adverts may persuade you to buy a product. They often include descriptions to make the product sound tempting.