Type a sentence, and a picture appears. That simple experience hides a remarkable process: a computer system that has studied millions of images and learned how words relate to shapes, colours, textures, and styles. AI image generators can create illustrations, product mock-ups, storybook pictures, and design ideas in seconds. This guide explains, in plain language, how they work, what makes a good prompt, and where their limits lie. Like other AI tools, image generators learn patterns from data rather than copying a single photograph. For background on the wider idea, see our guide to What Is Artificial Intelligence? A Simple Guide for Beginners. The picture you receive is new, but…