Prompt engineering is all about writing clear instructions to get the best results from AI language models. Good prompts tell the AI what you want—like a teacher giving exact homework. If you’re too vague or missing important info, the AI answer goes off track. When you’re clear (give context, the task, extra instructions, and even an example), the AI follows better, saves time, and gives more useful output. Prompt engineering matters everywhere—from writing ads or blogs to customer support chats. The mini secret? Test your prompts, tweak them, and don’t be afraid to get specific. Think of prompts like ingredients in a recipe: good ones make the dish taste better, bad ones ruin it.