Hands-On Large Language Models for Developers
A Practical, Visual Guide to Transformers, Fine-Tuning, RAG, and Real-World LLM Applications for Data Scientists and ML Engineers
Large language models are reshaping how modern software is built. Yet for many developers and data scientists, the reality is frustrating: plenty of theory, scattered tutorials, and very little clarity on how everything actually fits together in real projects.
This book exists to close that gap.
If you've ever felt overwhelmed by transformers, unsure when fine-tuning is truly worth it, or disappointed by systems that look impressive in demos but fall apart in production, you're not alone. The promise of language models is enormous-but only if you understand how to work with them confidently, safely, and effectively.
Hands-On Large Language Models for Developers is written for practitioners who want more than surface-level explanations. It guides you from foundational concepts to production-ready systems, helping you build intuition, avoid costly mistakes, and design solutions that scale in the real world. You won't just learn what these models can do-you'll understand why they behave the way they do and how to shape that behavior for practical outcomes.
This is not a book of shortcuts or hype. It's a grounded, experience-driven guide that shows you how strong language systems are actually designed, evaluated, and deployed by professionals.
What You'll Discover Inside- How transformers process information and why attention changes everything
- How embeddings, similarity, and retrieval form the backbone of modern semantic systems
- When prompting is enough-and when fine-tuning or retrieval is the smarter choice
- How to design reliable RAG pipelines that reduce errors and drift
- Practical workflows for classification, summarization, chat, and generation tasks
- How to evaluate, debug, and iterate on models with confidence
- Real-world deployment considerations around cost, latency, monitoring, and versioning
- Common misconceptions that hold teams back-and how to move past them
Throughout the book, concepts are explained visually and intuitively, with concrete examples drawn from real development scenarios. Each chapter builds practical understanding, so by the end, you're not guessing-you're making informed design decisions.
Whether you're a data scientist expanding into language systems, an ML engineer refining production pipelines, or a developer who wants to work fluently with modern models, this book gives you the clarity and structure you've been missing.
If you're ready to move beyond fragmented knowledge and start building language-driven systems with confidence, Hands-On Large Language Models for Developers is your guide.
Turn the page and start building with understanding.
