What do you need to do?
Start with the job in front of you.
Not “prompt engineering” and not a tour of the tools. Pick the thing that is actually waiting: an awkward reply, next week's posts, a job listing nobody has written. Each one opens a short sequence, the prompts behind it, and a kit if the job is bigger than one message.
If the job is not here
Search the whole library by the words you would use on a bad day — “refund”, “schedule”, “inspection”, “no-show”. The trade pages are written in that language on purpose. Search all 3200 prompts.