Developer releases free 84-page AI handbook on GitHub, from basics to working agents

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Developer Vinicius Pereira has published a free 84-page handbook titled 'Artificial Intelligence in Practice', available on GitHub as of mid-2026. The guide is designed for beginners with no AI background, requiring only basic terminal familiarity, though experienced LLM developers may also find value in its evaluation and cost sections. Topics covered include AI fundamentals, setting up development environments, running local models, retrieval-augmented generation (RAG), and building autonomous agents using frameworks like CrewAI and LangGraph. The handbook includes three capstone projects and concludes with guidance on moving from prototype to production. Released under a CC BY-NC-SA license, it is free to share and use for teaching, provided it remains non-commercial and properly credited.

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