Things I realized while reflecting over the past 7 years

The best introductory programming course that has already been taken and enjoyed by over 20,000 people. This introductory programming course was planned and prepared by Inflearn from the perspective of a non-major, and helps people who have never touched programming before to develop programming skills that can be used in real life.

This course is designed to cover Python metaprogramming and in-depth grammar based on extensive Python development experience and online and offline teaching experience. Furthermore, we have prepared a curriculum that will be helpful for Python job seekers' interviews and technical interviews for experienced professionals. In addition, we will explain the process of directly distributing the library you created to PyPI (Python Package Index).

Learn Figma, the most widely used collaboration tool in the world! Learn the basics of Figma, a design tool for UI design sketching, prototyping, and collaboration, and how to use it in practice.

Based on basic Python grammar knowledge, we will gradually increase the difficulty level from easy to difficult examples. During this process, you will learn how to study on your own, acquire solid grammar knowledge, and firmly establish your basics. In addition, we will learn frequently used patterns in Python programming.

This course focuses on teaching high-level grammar so that learners who have learned the basics of Python can apply Python to practical use. By understanding the unique features of Python and learning them quickly, you can become familiar with intermediate-level programming.

This course is designed to cover the grammar of multi-threading, multi-processing, parallelism, and concurrency based on OS knowledge in preparation for technical interviews. You will learn basic knowledge about how to increase execution efficiency with multiple resources.

This is an introductory web development course for those starting programming for the first time. By learning HTML, CSS, and JavaScript and creating an Instagram post card, you will learn the essential basics required for web page production.

You can meet Excel as a data analysis tool that can add value to your work. This is a basic Excel course that teaches concepts in a broad and thorough manner from the basics.

Do you want to create a tool that can help you with your real-world investments using Python? In this course, you will learn how to create an interactive web dashboard for financial data analysis for intermediate Python users and learn about pair trading strategies for in-depth quantitative work. We hope that you will be able to create your own useful analysis tools to help you analyze financial data more powerfully and make wise investment decisions.

Leverage Python to create your own indicators and a convenient tool for securities analysis!

It explains the basic concepts step-by-step and helps you build practical knowledge by creating various applications that run in real-world web environments. By completing this course, you will be ready to be deployed immediately as a professional programmer.

This is a class that teaches intermediate and advanced level data analysis and visualization chart creation methods to those who can handle Excel basics. With this class, you can master Excel completely!

This is a live video of Jung Heung-soo from Heung Button, which was broadcasted on January 23 as part of the <2025 Know Yourself Know Your Enemy Relay Live Campaign>.

In this lecture, we will look at service planning and design methodologies for planning services in the IT/tech field, as well as various soft skills that service planners must have. Finally, we will analyze the service using the example of an AI voice recognition service, a UX service introductory lecture for beginners.

This is a lecture that captures the scene of a product design meetup held by former Toss Product Designer Kang Young-hwa and Inflearn! You can learn many insights and work know-how from a 10-year product designer!

You can watch the opening and presentation sessions of Infecon 2024, a festival for growing IT professionals, again in video.

This is a video of the meetup that took place at 7pm on January 31st.

Every office worker faces moments of "official" speech! Learn the art of professional communication from Jung Yeon-ju, a veteran announcer with 26 years of experience, a fellow office worker, and the go-to speech coach for government ministers! From the mindset of formal speaking and basic vocal skills to methods for expanding your vocabulary and situational communication strategies within an organization—such as reporting, presentations, and discussions! Master the core essentials of workplace communication and become a professional who truly "speaks well."

Conversation cheat code for an intimate atmosphere! Even 1 minute of chat is enough.

Most of us grow up learning that the "stable path" is the right answer. However, we are never taught why that choice is designed to make money slowly, or why results often don't follow despite working hard. This lecture first deconstructs the structural mindset that prevents you from making money and provides criteria for testing market reactions and trying again even if you fail. This course was created to be a starting point for those who are stuck not knowing what to do, or those who are exhausted from endless preparation, to change their thinking and reset their decision-making criteria.

No longer living as “me, myself” in “other people’s subjectivity”. Survive as “me”! Get rid of socially fixed frames and bubbles, and learn the know + how to develop and design your own experience and career to create a personal brand.

Pass rate 1% -> 66%, achieved a 60 million won salary in the 2nd year ☑️ I have packed all the know-how that turned a resume rejected over 300 times into a resume that 'unconditionally passes' into a single book. Do you feel like you're the only one falling behind despite working as hard as everyone else? If it's difficult to even pass the document screening despite taking numerous courses and building up your specs, there is a high possibility that you misunderstand the 'rules of the game.' This book teaches you the 'rules of the winning game' itself so that your efforts lead to the results you deserve.

This course is structured to provide step-by-step learning from the basic concepts of communication that are essential in workplace and organizational life to practical application methods. This is practical, work-focused education that helps you develop substantial communication skills to build trust and positively lead relationships both within and outside the organization, covering topics such as the definition and types of communication, non-verbal and verbal communication, written communication, various communication styles (DISC), communication barriers, and effective questioning techniques. Through theory, case studies, and practical tips, you can acquire communication know-how that can be immediately applied in daily work.

A reading method that absorbs into your head with just one look? We will tell you a story that changes your life with just one book.

Karen Floyd is a world-renowned career coach who has designed the careers of leaders at numerous global companies such as Google, Samsung, Naver, and Hanwha. Selected as a top 1% communication expert by the European PR Association and a former headhunter who has handled hundreds of resumes and interviews, she is launching her first course on Inflearn specifically for Korean students. Design your own career strategy and brand using Karen's personally developed C.L.E.A.R. Career Method and LinkedIn branding strategies.

If you're okay living your whole life doing what others tell you, you don't have to read this book. Please go back.

Based on my experience as an interviewer and 14 years in charge of recruitment, having helped over 3000 people pass, I will provide detailed know-how for passing interviews from an interviewer's perspective.

This is a real-deal Chinese course packed with authentic expressions you can use immediately in daily life. Just 5 minutes during your commute or daily routine will transform your Chinese skills!😊

There are many times when even great products and hard-earned content fail to move people's hearts. In an era where we often lose the essence of marketing while being dragged along by trends and algorithms, Seth Godin asks us: "What change do you want to make?" We invite you to a lecture that revisits the essence of marketing—moving human hearts and actions.

[Design] Creating a Business Report Structure That Gets Approved Instantly Project 2 goes beyond just understanding why reports fail to get passed; it is a practical course on designing report structures that actually drive decision-making. Many reports contain plenty of information, but they are often put on hold because it isn't clear what exactly needs to be decided. This course covers how to transform a report from a mere "explanatory document" into a strategic design that accelerates your supervisor's decision-making.

Have you ever heard comments like: “Try organizing this a bit more.” “Let’s discuss this again at the next meeting.” Even after working hard on a report? Many practitioners think the problem is a "lack of logic." However, the actual cause is different. It is because noise that hinders decision-making is obscuring the structure. For over 20 years, I have reviewed and revised countless reports in major corporations, investment firms, and M&A projects. In that process, I discovered one truth: Most reports fail to reach a decision not because they are lacking, but because they fail to erase. In Lesson 5, we remove unnecessary content from the already designed F.O.C.E. structure. This lecture covers how to increase decision-making speed through removal, not addition. You will learn the practical techniques of the refinement process that makes the "Yes/No" visible even before an executive reads it.

Dear Inflearn students, I’m sure you have many concerns about coding, but you likely have many concerns about marriage and childbirth as well, right? You might want to get married and have children, but the responsibility feels heavy, and you may worry about losing your current freedom. I used to be someone who was against marriage. I praised a life of freedom, but at my wife's persuasion, I chose to get married, thinking, "I'll give it a shot." At first, I regretted it because it felt like marriage was taking away my freedom, but strangely, once I let everything go and dedicated myself to my family, I became free. And I began to see the advantages that I couldn't see before due to my prejudices. This course "explains" what marriage and childbirth are to those who are hesitating. I also shared thoughts on realistic concerns, such as what kind of person you should marry and whether money is absolutely necessary for marriage. Because I was once against marriage, I was able to organize these thoughts better from both perspectives. There will likely be stories here that you won't easily hear anywhere else. In the face of the most important life decisions—marriage and childbirth—this course will be a truly worthwhile investment.

A practical publishing strategy revealed by an author and editor. From publishing proposal to contract and monetization—how to change your career with one print book.

Why is it that even after writing a great report, a decision still isn't made? It’s not because your persuasion is lacking. It’s because the structure is weak. In this lecture, we will use the F.O.C.E. framework to design a document structure that makes it "impossible for executives to avoid" making a decision. Fix the subject of judgment with Frame, Specify the cost of indecision with Obligation, Eliminate alternatives with Convergence, And show the scene of implementation with Execution Image. Learn how to apply pressure through structure, not just persuasion.

Through this course, students can improve their Go reading skills and apply them when playing actual Go games.

This course aims to analyze the impact of baby boomer retirement on society and the economy, and to present strategies to prepare for this transition. The course consists of three parts: the first part covers the current state of baby boomer retirement and the resulting social and economic changes. The second part presents personal retirement preparation, asset management, and coping strategies for the later stages of life. The final part focuses on understanding policy responses suitable for an aging society and solutions for intergenerational coexistence, with emphasis on understanding the roles of government and businesses.

Don't know a thing about tarot cards? That's fine. Learn easily and enjoyably, your first introductory tarot course!