Hello, this is Jim Coding.
The Chuseok holiday is just around the corner. To celebrate the upcoming Chuseok holiday, all JimCoding courses, including “Claude Code Complete Mastery,” are 30% off for exactly 7 days starting today. If you’ve been putting off enrolling, this Chuseok is your chance.
✅ Discount Information
Eligible courses: All Jim Coding courses (including Claude Code Mastery)
Discount rate: 30% off
Price: Claude Code Complete Mastery 198,000 won → 138,600 won (30% OFF)
Period: September 21 (Mon) through midnight on September 27 (Sun), exactly 7 days
👉 Enroll now at the discounted price
🎯 If you haven't taken Claude Code yet
The question is no longer whether to use an AI coding tool, but how well you can use it. Since its launch, more than 10,800 people—not only developers but also marketers, planners, researchers, and data analysts—have learned Claude Code through this course.
There’s no better time to start something new than a holiday break. Sign up now, and even if you follow along for just an hour or two a day during the break, by the time it’s over, you’ll be creating something yourself with Claude Code.
Recent course reviews
I used to try to follow along as much as possible each time I watched a lecture, but that left me tired, took a lot of time, and there were even lectures I couldn't finish. When I tried doing it as you suggested—watching it once at first and then going back to the parts I needed later—I didn't feel pressured during the initial viewing, and I was able to quickly graspthe overall flow, which was great. The course also gives you great tips for taking a course~!! Going one step beyond simply using Claude Code, I think this is a truly helpful course for developers who want to put it to proper use in their work.
✍️ For those currently taking the course
If the course has been even a little helpful, a single line in your course review would mean a great deal. Even a brief, honest review can be a helpful guide for those just getting started, and motivate me to create even better courses.
📚 For those who have already taken the Claude Code course
This discount applies to all courses, not just the Claude Code course. If you’ve established your AI development workflow with Claude Code, I recommend adding one more 'skill you can build with' this holiday. Even if Claude Code writes the code for you, those who can read and understand what the code does ultimately go much further.
✅ Master React: From Basic Concepts to a Lean Canvas Project - If you want to get started with frontend development properly
✅ Master Next.js (v15): Build a Notion-based developer blog - If you want to deploy your service for real
✅ Master TailwindCSS: From Portfolios to Admin Dashboards - Learn to fix AI-generated interfaces yourself
✅ The Complete Vue 3 Guide / Complete Nuxt 3 Mastery - The ultimate combination for the Vue ecosystem
✅ Master Asynchronous Programming: Promise and async/await - It's a free course, so feel free to join.
If you’ve already mapped out the order with a roadmap, you may also want to check out [Jim Coding] React/Next.js + Claude Code Practical Roadmap.
📣 We’re also working hard to prepare the ‘Practical Version’
We are currently preparing “Master Claude Code Completely: Practical Edition”. Going beyond the basics, we are packing it full of content on how to properly use Claude Code in real-world work. When the Practical Edition is released, existing students will receive a separate discount coupon. If you take the basic course with this discount now, you’ll be able to continue to the next level at an even lower price 😊
If you’ve ever thought, "Why isn’t this working?" while using it, encountered a problem you couldn’t solve to the end, or have a topic you wish had been covered in greater depth, please leave it in the comments. When scattered questions come together, they become the practical curriculum.
Once again, this Chuseok sale ends at midnight on September 27 (Sunday). If you've been on the fence, why not get started this Chuseok?
This upcoming Chuseok, I hope you enjoy lots of delicious food with your family and have a healthy and abundant holiday 🌕
Thank you ☺️