Best short developer course: ChatGPT Prompt Engineering for Developers. DeepLearning.AI course focused on practical prompting for software and API tasks. Start here if you want a compact course with examples rather than a giant prompt-tip library.
Best broad reference: Learn Prompting. Sander Schulhoff's guide covering prompting patterns, risks, and terminology. Use it when you need to look up techniques and compare approaches.
Best Claude-specific prompting source: Anthropic Prompt Engineering Overview. Official Anthropic guide for prompting Claude. Use it when your prompts are going into Claude rather than a generic chat interface.
Prompt engineering is workflow design
The useful version of prompt engineering is not memorising magic phrases. It is learning how to specify a task, provide context, ask for structured output, test the result, and revise the instruction when the model fails. The best prompt courses make that loop explicit.
ChatGPT Prompt Engineering for Developers is the cleanest short course if you want examples quickly. Learn Prompting is better as a reference library. Anthropic's guide matters when the target model is Claude, because prompt shape and model behavior differ across providers.
How to practice prompts without fooling yourself
Practice on tasks where you can judge the output: editing a document, extracting fields, summarising a known source, generating test cases, or transforming data into a fixed format. Keep the input, prompt, output, and failure notes together so you can see whether your prompt actually improved.
Skip courses that only offer prompt packs. A reusable prompting skill comes from understanding context, constraints, examples, and evaluation, not from copying a long instruction that worked once in a screenshot.
Recommended courses and resources
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ChatGPT Prompt Engineering for Developers
Short course · DeepLearning.AI · Beginner
You want a short, structured intro to prompting for software tasks.
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Learn Prompting
Guide · Sander Schulhoff · Beginner to intermediate
You need a broad prompt engineering reference.
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Prompt Engineering Guide
Guide · DAIR.AI · Beginner to advanced
You want examples of prompting techniques and patterns.
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GPT-5.5 prompting guide
Guide · OpenAI · Intermediate
You want the official prompting adjustments for GPT-5.5 instead of reusing older GPT-4 or GPT-5 prompt habits unchanged.
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OpenAI model optimization
Guide · OpenAI · Intermediate
You need a practical optimization loop across prompt changes, evals, and fine-tuning rather than guessing which knob to turn next.