How to Get ChatGPT to Work Effectively: From Prompts to Practical Applications

For office workers who feel overwhelmed about what to entrust to AI and how, we transform repetitive tasks into step-by-step workflows based on practical experience.

ChatGPT, which used to only answer questions, now works directly on my computer. I give it instructions in Korean without typing a single line of code and receive the results as files. This six-part series, including the orientation, explains Codex’s workflow of context, planning, execution, and deliverables, then covers everything from safely defining a working folder to organizing files, creating tables with sources, and setting up scheduled executions that run automatically at a specified time.

If you’ve been leaving work late because you had to handle everything alone—from organizing meeting minutes, announcements, proposals, presentation materials, and Excel files to customer inquiries—now leave it to Claude. I’ll show you how to complete 11 practical tasks one by one, save them as skills, and automate your daily work, using the exact way I use it myself as a non-developer.

This course is a question-focused training program that uses ChatGPT to directly design practical questions needed in the workplace and expand them into idea generation, report writing, and problem-solving. It is structured around hands-on practice, covering everything from creating good questions to team workshops, Why-based thinking, and question template automation, providing working professionals with question design and critical thinking skills they can immediately apply in the field.

A curriculum with everything for English learning: Speaking, Reading, Writing, Grammar! ChatGPT alone can handle all this.

[Source Code Provided] No coding knowledge required. Build it instantly in your browser using Google's latest tool (IDX) without any installation! Stop studying coding syntax! This is an ultra-fast, hands-on course where you'll build an RAG chatbot that perfectly understands internal company documents through AI conversation (Vibe Coding) in the Google IDX environment and deploy it live to the web.

This course completes the entire workflow of practical data analysis, from Excel data analysis to SQL, BigQuery, and Tableau dashboards, through hands-on projects. Rather than just teaching you how to use the tools, you will learn the data analysis structures and mindsets actually used in real-world analysis tasks.

Stop getting student-record planning. I’ll reveal the entire consulting playbook used by a college admissions consultant with 30 years of experience.

Now you can use Python in Excel! A light lecture to try out the latest features!

🛠️ [Course Introduction] "Real" HVAC Scheduling from an 18-Year Veteran Do you know what task takes up the most time and causes the most stress when working at a construction site? It is **'schedule revision.'** In the past, I also spent countless nights drafting HVAC construction and commissioning schedules. Construction sites are prone to delays due to unexpected variables, so wrestling with schedules every month—or even every week—was my daily routine. Looking back, the real reason I struggled so much was that **'no one ever properly taught me.'** There was no basic training on how HVAC relates to other trades or how to actually calculate the time required for construction or commissioning. Consequently, the schedules I spent so much time creating often lacked the accuracy needed to be useful on-site. Then, I had a great opportunity to receive intensive training on scheduling. Once I understood the principles, I honestly felt a bit frustrated. I realized that it’s quite simple once you know the core concepts, and I had wasted so much time during projects simply because I didn't know the method. Ultimately, a construction project is a battle of 'resource management.' The three most important resources to manage on-site are materials, manpower, and equipment. Schedules are created to manage these resources efficiently and are immediately revised when changes occur to prevent delays in the overall construction period. In other words, the schedule is a critical document that serves as the standard for overall project management. While large construction companies may have dedicated scheduling teams, practitioners in each trade must fundamentally be able to draft their own schedules. This is because the schedules of each part come together to form the massive framework of the entire project schedule. That is why I have prepared this course, packed with the practical insights I've gained from 18 years in the field. • Scheduling Basics: What types of schedules exist on-site, and what/how a practitioner should draft them. • HVAC-Specific Practice: Scheduling examples and exercises tailored to actual HVAC work, from representative duct installation to commissioning. • Know-how to Avoid Trial and Error: Tips to stop wasting precious time on meaningless schedule revisions like I did. If my explanation is insufficient or if you get stuck while studying, please do not hesitate to ask questions at any time. Just like an HVAC system that must run 24/7, I will be standing by to provide reliable answers to your questions!

In this course, you can learn a wide range of topics, from basic Excel functions to advanced formulas, data visualization, and dashboard creation, with a focus on hands-on practice. By providing templates and solution files, self-study is possible, and you can maximize work efficiency by mastering data analysis skills that can be immediately applied in real-world scenarios.

👉 Recommended for those who want to view AI results not as “values that simply came out,” but as understandable judgments. What exactly does AI use as the basis for making judgments? This course structurally explains how data affects AI’s judgments and why data is said to be important. You will learn how AI interprets numerical information and develops criteria for making judgments.

Automate complex tasks in a snap! Excel macros and VBA, from basics to practical use!

Learn how to structure diverse data—including students’ grades, school records, and areas of interest—using the AI-SPARS tool, and leverage an LLM to design everything from major exploration and college/admissions strategies to personalized roadmaps. Rather than simple Q&A, you can immediately apply in practice a systematic AX-style career and college counseling process that progresses from Profile-Interview-Major-College-Admissions Track-Gap-Roadmap-Smart Report-Portfolio.

Can you make a proposal look convincing with AI, but lack the confidence to bring it into the meeting room? A global content strategist with 17 years of experience—who built practical planning expertise at major advertising agencies and global e-commerce companies, and had that expertise validated on a global education platform—will teach you the principles of planning that work in practice and AI workflows, from defining the problem to completing the slides.

Mastering difficult AI with just one single analogy?! A first step into AI principles, understanding through core concepts rather than just terminology.

The Gemini agent that works across Google Drive! Put the finishing touches on your Google AI workflow with overwhelming productivity.

Complete 'Your Own Excel Add-in' by Giving AI Verbal Instructions Instead of Using VBA Syntax - Get started without coding knowledge · AI writes the code - Create your own tab and buttons in the Excel ribbon and distribute it as an XLAM - Preview the first lesson for free before payment · Lifetime access

Build your own AI headquarters at a low cost! This is a practical guide to building autonomous AI agents that combine Gemini 2.5 Flash and Docker to ensure security while reducing costs.

👉 A starting point for those who want to properly understand AI for the first time. If you understand what AI does but aren’t quite sure why it works the way it does, this is the course to start with. In this course, we’ll explain step by step, from the beginning, how artificial intelligence differs from traditional programs and how learning and decision-making take place. Without complicated equations or coding, the course is designed to help you understand the big picture of how AI works.