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About Dr. Alex Turner

Dr. Alex Turner leads the editorial direction for Prompt Engineering: From Zero to Hero, part of the DocusNet family of free, web-first technical books. The goal is practical: help readers move from curiosity about large language models to repeatable prompting and context design they can use in real workflows.

What this book assumes about you​

You might be a developer, a product manager, a researcher, or a curious professional. You do not need a PhD—but you do need patience for clear instructions, examples, and iteration. Models change quickly; the through-line here is how to think in systems: specify intent, ground the model, measure quality, and tighten failure modes.

Editorial principles​

  • Clarity over swagger. Jargon is introduced when it buys you leverage, not to impress.
  • Honest limits. LLMs hallucinate, drift, and reflect training and policy constraints. The safety chapters exist because “better prompts” are never a full substitute for threat modeling.
  • Production instincts. “It worked once in ChatGPT” is not a strategy. The later chapters emphasize evaluation, tooling, and maintainable patterns.

Corrections and evolution​

This book is maintained as a living site. If you spot an error, an unclear explanation, or a broken link, open an issue or pull request via the DocusNet organization on GitHub so the text can stay accurate as models and APIs evolve.

Start reading​

When you are ready to begin—or to send someone their first link—start at the book home page or jump straight into Chapter 1: The absolute basics of large language models.

— Dr. Alex Turner, for DocusNet