Unlock the full potential of language models with Domain-specific LLMs, RAG AI & Prompt Engineering! This comprehensive guide covers everything you need to know to build custom Language Models, Retrieval Augmented Generative AI, and fine-tune prompt engineering. Learn how to tailor your models to specific domains, improve their performance with retrieval augmentation, and create effective prompts for maximum generation accuracy. With practical examples and exercises throughout the book, you'll be able to apply these techniques to real-world applications. Whether you're a seasoned AI developer or just starting out, this guide is essential for anyone looking to push the boundaries of language modeling. Get ready to take your language models to the next level!