This course teaches you how to write safe and reliable code in the software development process. Rather than simply stopping at feature implementation, you'll learn programming principles and techniques that can prevent security vulnerabilities and ensure stability. Through hands-on practice and case studies, you can understand security threats that may occur in real development environments and acquire safe coding techniques such as coding rules, input validation, exception handling, and memory management to prevent them. By taking this course, developers will enhance the completeness of their code while gaining practical capabilities to develop software with security and reliability.

This is a lecture where you can learn JavaScript through theory and practice. We explain step by step so that even those who are new to coding can easily understand. Part 1 covers an overview of JavaScript, variables, data types, operators, control statements, and the basics of jQuery.

This course is an introductory course for beginners of Maya that will teach you the basic functions of Arnold Renderer version 5.0.1.2 included in Maya 2018.

This is a basic machine learning course that briefly covers the basic machine learning theory for those who are new to machine learning.

This is an assembler course provided by Smoothie TV.

This is a basic C++ course for those who are new to C++ programming. You will learn and practice how to utilize C++ along with an overview of programming and the basic grammar of C++.

Learn the basics of using AutoCAD and the basic functions for 2D CAD work.

This is a free Unity basics course by Unity Hub root owner Dong-geun Joo.

This is a series of video lectures for AWS beginners and college students enrolled in AWS Educate. We will briefly introduce the AWS registration process and free tier services.

This course is designed to provide basic knowledge for those who are interested in mechanical drawing and design, those who are aiming to obtain qualifications in the field, those who wish to advance into a related field, or those who wish to improve their expertise.

This course is designed to provide basic knowledge for those who are interested in mechanical drawing and design, those who are aiming to obtain qualifications in the field, those who wish to advance into a related field, or those who wish to improve their expertise.

This course is designed to provide basic knowledge for those who are interested in mechanical drawing and design, those who are aiming to obtain qualifications in the field, those who wish to advance into a related field, or those who wish to improve their expertise.

This course will help you learn JavaScript through theory and practice. It explains step by step so that even beginners can easily understand. Part 2 covers JavaScript functions and events, types of functions, and core libraries.

For beginners who are trying to become an Amazon Seller, this book is structured to focus on understanding related knowledge and functions, background knowledge for conducting actual business, and explanations of actual functions.

This course is designed to prepare you for the Information Security Engineer written exam by concisely summarizing core theories and strengthening practical skills through problem-solving. Take a step closer to obtaining your Information Security Engineer certification with past exam analysis and practical preparation strategies.

This course provides a brief introduction to the basic usage of lighting and rendering features in Maxon Cinema 4D R23 software.

This is the Pen Tool series from the Photoshop Advanced Course provided by Photoshop Revolution Broadcasting.

I help ordinary people who know nothing to create a homepage by just following my instructions!

Run effective advertising with Google AdWords

I would like to introduce you to the Premier course by Nori Island on YouTube.

Learn how to efficiently handle document creation and everyday tasks needed in the workplace using Claude Sonnet AI. You will learn the basic concepts of AI and how to use the Claude platform, as well as prompt-writing techniques that can be applied immediately through real-world work and daily life examples.

This course covers how to use the generative AI Claude in marketing practice. You will learn the basics of using Claude and practice applying it to a variety of marketing tasks. It is designed to help learners preparing to start a business or working in marketing departments use AI effectively.

Is your Excel work complex and time-consuming? Excel, essential for office work [VOD] Discover Excel Functions and Macros (VBA Code) using Chat GPT. It will be a reliable assistant for your Excel work.

Are you using AI but still typing new prompts every single time? Code is being generated, but are team-level automation and systematization still out of reach? This course is not about learning Claude Code as a "conversation tool." It is a course where you will learn how to design AI as a system using Agents, Sub-agents, Agent Teams, Memory, and Hooks.

I will show you "where to start" through a case study of building a service with non-developers in just one day, and explain "how to manage and collaborate" using the example of designing the GitHub structure for the Selfish Membership team.

Not an Excel course that ends when you finish learning, but one that makes your own tool “snap” into the ribbon. It’s time to stop letting VBA books become mere bookshelf decorations! Even without knowing a single line of code, you can create your own automation button simply by conversing with AI. Discover now, through this free course, how to create CustomUI-based add-ins—a method revealed from start to finish for the first time in Korea by a Microsoft Excel MVP.

From AWS EC2 backend operations to automatic error fixing, we are revealing the entire development process of Sidabari (https://github.com/cx8537/sidabari), a Claude Code-based automation tool. In this course, we provide all the actual prompts and conversation history used as learning materials, allowing you to experience the entire prompt input process involved in its creation.

While your colleagues are already working with Claude Code, are you still doing all of this manually? Don’t worry! Take this course, and you too will become a vibe-coding master.

A practical introductory course on Claude Code for Unity developers! From installing Claude Code to Unity MCP integration, managing project conventions using CLAUDE.md, custom slash commands, and collaboration workflows—we will teach you everything you need to know for real-world application. Finally, you will gain hands-on experience effectively applying Claude Code to a Unity project by building a Survivor-style game from scratch.

Everyone says agents are the trend, but why does your work stay the same? Have you been blocked by the "alien language" of APIs, stuck at tool installation, or found that what you learned doesn't translate to actual work? This integrated course connects the entire process into "one single path"—from the principles of API and communication structures to creating your own agent through Vibe Coding, and automating practical tasks like reports, Excel, and content with Claude Code. Whether you start from the basics or aim for professional application, you will complete the journey without interruption. (Windows recommended)

Learn how to dramatically boost work productivity by automating the most frequently used MS Office tasks in your work using chatGPT.

It's okay if AI feels unfamiliar and difficult to you. In just one week, I will share the entire "trial and error" journey of building everything from a membership landing page to automation and data analysis from scratch using Claude Code. Even if you don't know how to code or are a complete AI beginner, I'll show you through real-world examples so you can take on the challenge yourself.

This course is designed for those who want to go beyond simple AI chatting and actually get work done using AI agents. Many students are already using ChatGPT or Claude, yet they still struggle with repetitive tasks, scattered workflows, excessive research, and low productivity. The problem usually doesn't lie with the AI itself, but in knowing how to organize work systematically, give clear instructions, and build reliable workflows. In this course, we provide a step-by-step guide on the practical application of Claude Cowork. Rather than focusing solely on theory, we practice through practical examples such as project management, browser automation, meeting preparation, persistent memory systems, skills, plugins, and desktop control. This course explains everything in a simple and practical way so that even beginners can easily follow along. By the end of the course, students will understand how to utilize Claude Cowork as a true productivity assistant for research, planning, organization, automation, and daily tasks.

The lecture explains why the harness is more important than the model through the lens of Claude Code architecture. It also covers how to design a Claude Code work system around six structures: Context Harness, Permission Harness, Verification Harness, Tool Harness, Subagent & Worktree Harness, and Debugging Harness. It then connects these concepts to CLAUDE.md, session management, controlling large codebases, parallel worktree operations, error log analysis, and tracking environment variable and configuration scope issues, helping you establish practical standards for continuing to use Claude Code in real-world backend and DevOps work.

Customer analysis completed with Excel and Orange, from cross-selling to A/B testing and churn risk management all at once

Learn a complete workflow for efficiently creating your own e-book utilizing AI and automation tools. From slide creation with Marp and PDF/EPUB conversion using Pandoc, to MySQL database management, cover design, and publishing preparation, this guide provides a systematic production process applicable directly in practice, step-by-step.

Evolve Obsidian from a simple notepad into a personal knowledge database and build an AI assistant that understands your notes and documents using Claude Code. Create custom workflows to automate repetitive tasks and complete a knowledge system where daily work and learning compound and transform into your own unique expertise.

This course is designed step-by-step, from the basics to practical application, so that even those new to Claude AI can easily follow along. In this course, you will start with the basic concepts of Claude AI and how to write prompts, and then learn various use cases such as document writing, summarization, translation, brainstorming, and file and image analysis. You will also practice how to create documents, charts, diagrams, and simple applications using Claude Artifacts, as well as creating infographics using Claude Design, modifying results, and saving them as PDFs. Finally, we provide productivity-enhancing know-how that can be used immediately in the workplace, including advanced prompt engineering techniques, automating repetitive tasks using the Projects feature, Excel functions, and coding support. From beginners with no AI experience to office workers, students, and content creators who want to increase work efficiency, the course explains everything through practical examples so that anyone can learn easily and apply it right away.

AI writes on Slack and Notion for me? Work smarter with MCP, which goes beyond the limits of existing AI!

Strategic Resume Writing for Experienced Developers: Insights from an Interviewer Who Has Reviewed Thousands of Resumes ✅ Real insights from actual hiring decision-makers ✅ Strategies based on experience at both large corporations and startups ✅ Content specialized for server developers with 3+ years of experience ✅ "Interviewers are busy too" - How to win within 30 seconds ✅ AI is a tool, storytelling is the core