Create AI Agents with LangChain: Build Intelligent AI Systems with Python, RAG Pipelines, and LangGraph Workflows

By Erynd Blackthorn

Artificial intelligence is rapidly evolving from simple prompt-based tools into intelligent systems that can reason, retrieve knowledge, use tools, and coordinate complex tasks. These systems known as AI agents are becoming one of the most powerful new paradigms in modern software development.
Create AI Agents with LangChain is a practical, hands-on guide to building these systems from the ground up using Python, LangChain, Retrieval-Augmented Generation (RAG), and LangGraph workflows.
Rather than focusing on theory, this book follows a project-driven approach where each chapter builds on the previous one. As you progress, you will gradually construct a complete AI agent architecture learning how to design, implement, and scale intelligent systems step by step.
You will begin by mastering the fundamentals of LangChain and language model integration. From there, you will build modular chains, extend your agents with tools, and implement Retrieval-Augmented Generation pipelines that allow your systems to retrieve and reason over real data using vector databases.
As the architecture evolves, you will design stateful agent workflows with LangGraph, enabling multi-step reasoning and structured task execution. You will also build collaborative multi-agent systems, where specialized agents work together to solve complex problems.
By the end of the book, you will have built a fully functional AI agent system and learned how to deploy and scale it for real-world applications.
Inside the book, you will learn how to: Build AI agents using LangChain and PythonCreate RAG pipelines and vector-based knowledge systemsDesign LangGraph workflows for multi-step reasoningImplement tool-using agents and multi-agent architecturesDeploy and scale AI agent systemsWith clear explanations, practical guidance, and working code examples throughout, this book equips you with the knowledge and skills needed to engineer real AI systems not just experiment with prompts.
If you want to learn how modern AI agents are built and how to create your own from scratch, this book will guide you through the process one working system at a time.

• Format: Paperback
• Language: English
• ISBN: B0GSW2SFWG
• ISBN13: 9798252374765
• Release Date: March 2026
• Publisher: Independently Published
• Length: 370 Pages
• Weight: 1.41 lbs.
• Dimensions: 0.8" x 7.0" x 10.0"