- [Hello-Agents](/en/README_EN.md)
  - [Preface](./Preface.md)

- <strong>Part I: Fundamentals of Agents and Language Models</strong>
  - [Chapter 1 Introduction to Agents](/en/chapter1/Chapter1-Introduction-to-Agents.md)
  - [Chapter 2 History of Agents](/en/chapter2/Chapter2-History-of-Agents.md)
  - [Chapter 3 Fundamentals of Large Language Models](/en/chapter3/Chapter3-Fundamentals-of-Large-Language-Models.md)

- <strong>Part II: Building Your Large Language Model Agent</strong>
  - [Chapter 4 Building Classic Agent Paradigms](/en/chapter4/Chapter4-Building-Classic-Agent-Paradigms.md)
  - [Chapter 5 Building Agents with Low-Code Platforms](/en/chapter5/Chapter5-Building-Agents-with-Low-Code-Platforms.md)
  - [Chapter 6 Framework Development Practice](/en/chapter6/Chapter6-Framework-Development-Practice.md)
  - [Chapter 7 Building Your Agent Framework](/en/chapter7/Chapter7-Building-Your-Agent-Framework.md)

- <strong>Part III: Advanced Knowledge Extension</strong>
  - [Chapter 8 Memory and Retrieval](/en/chapter8/Chapter8-Memory-and-Retrieval.md)
  - [Chapter 9 Context Engineering](/en/chapter9/Chapter9-Context-Engineering.md)
  - [Chapter 10 Agent Communication Protocols](/en/chapter10/Chapter10-Agent-Communication-Protocols.md)
  - [Chapter 11 Agentic-RL](/en/chapter11/Chapter11-Agentic-RL.md)
  - [Chapter 12 Agent Performance Evaluation](/en/chapter12/Chapter12-Agent-Performance-Evaluation.md)

- <strong>Part IV: Comprehensive Case Studies</strong>
  - [Chapter 13 Intelligent Travel Assistant](/en/chapter13/Chapter13-Intelligent-Travel-Assistant.md)
  - [Chapter 14 Automated Deep Research Agent](/en/chapter14/Chapter14-Automated-Deep-Research-Agent.md)
  - [Chapter 15 Building Cyber Town](/en/chapter15/Chapter15-Building-Cyber-Town.md)

- <strong>Part V: Graduation Project and Future Outlook</strong>
  - [Chapter 16 Graduation Project](/en/chapter16/Chapter16-Graduation-Project.md)