What Prompt Engineering Is and Why It Matters

This lesson introduces prompt engineering as the practical discipline of giving AI systems clearer instructions, better context, and more useful constraints. Students learn that prompts are not magic phrases; they are working specifications that shape how a model interprets a task, reasons about options, and formats an answer.

Professor Nathan Ward frames prompt engineering as a repeatable communication skill for improving reliability, reducing ambiguity, and lowering risk when using AI tools. The lesson focuses on why prompting matters, what a prompt can and cannot control, and how beginners should think about prompts before learning specific patterns in later lessons.