jungjun Hur

Jungjun Hur is an AI and data engineer with experience in e-commerce and AI industries, where he has built production-ready AI applications and LLM-powered features.

books by jungjun Hur

Build an AI Agent (From Scratch)

  • MEAP began October 2025
  • Last updated May 2026
  • Publication in August 2026 (estimated)
  • ISBN 9781633434615
  • 375 pages (estimated)
  • printed in black & white

Build an AI Agent (From Scratch) is a step-by-step guide to creating a working AI agent, starting with the bare essentials and growing your AI into a full-featured, real-world system. You will connect your agent to powerful software tools, implement a reasoning loop, and then extend your agent with retrieval, memory, planning, reflection, and even multi-agent coordination. Along the way, you will work through production-grade code snippets, full prompts and configs, and “make it better” exercises that encourage you to extend and improve your system. By the final chapter, you will have built an end-to-end AI agent that you can use as a foundation for your own projects.