The Prompt Engineering Bible

Advanced prompt engineering techniques for Claude, GPT-4, Gemini, and open-source LLMs — 12 chapters covering foundations, zero-shot vs few-shot prompting, chain-of-thought & reasoning, system prompts & personas, structured output (JSON/XML), prompt chaining & decomposition, tool use prompting, multi-modal prompting, prompt security & injection prevention, evaluation & A/B testing, model-specific techniques (Claude vs GPT vs Gemini), and production prompt management. Every chapter pairs technique with a copy-ready template.