How to Take Smart Notes – Sönke Ahrens
or How to Use the Smart Notes Technique to Improve Writing, Learning, and Thinking

If you’ve ever felt stuck while trying to organize your ideas, or faced writer’s block staring at a blank page, the book How to Take Smart Notes by Sönke Ahrens offers a powerful solution. In this book, Ahrens presents a revolutionary approach to transforming the way we write and learn, using the technique based on Niklas Luhmann’s Zettelkasten. The book not only promises to boost academic productivity but also to reshape how we learn and think.
What Are Smart Notes?
The foundation of this technique lies in a simple yet highly effective principle: instead of trying to organize and develop all your ideas at once, you separate them into small, interconnected notes that evolve over time. Ahrens puts it clearly:
“Writing is not merely a way to record what we already know, but the main tool for thinking and developing new ideas.”
This method aims to eliminate the paralyzing feeling of the blank page by starting with the systematic organization and notation of ideas, which are later interlinked and developed fluidly. As Ahrens observes:
“The quality of a paper and the ease with which it is written depend on what you have done long before you even decide on the topic.”
Simple Structure, Complex Results
Unlike traditional note-taking methods, Ahrens’ system suggests that ideas should be stored in a simple format, without being rigidly categorized by topics.
He emphasizes that trying to organize notes by specific subjects can restrict creativity and hinder connections between ideas.
Instead, by using an open structure, it becomes possible to create more unexpected and valuable connections across different areas of knowledge. As he explains:
“The simplicity of the structure allows complexity to develop at the content level.”
This approach helps manage information complexity without overloading the mind with rigid categorizations, letting ideas flow more naturally.
How Does It Work in Practice?
Ahrens’ Smart Notes system involves three main types of notes, each with its own role in the process:
- Fleeting notes: Capture instant thoughts or insights. These are temporary and exist only to make sure you don’t lose an idea at the moment it arises.
- Literature notes: When reading a text, you jot down brief notes in your own words about the most important information. Ahrens argues this enhances understanding, instead of just copying excerpts.
- Permanent notes: The most important in the system. After processing your fleeting and literature notes, you turn those ideas into clear, interconnected concepts to be stored in your note system—the famous Zettelkasten. Each note should contain a single idea but be linkable to others, building a rich web of knowledge.
Applying It in Daily Life
Whether you are a student, researcher, or writer, the Smart Notes method can be applied in many areas of your work. For complex projects, the system makes it easier to build a network of ideas that can be explored and expanded over time.
One of its greatest benefits is that you never start from a blank page: there will always be something to work with, a starting point. This is essential to break creative block. As the author states:
“Those who take good notes never face the problem of the blank page.”
Moreover, by maintaining a consistent writing practice, the processes of learning and writing become more enjoyable and productive. According to Ahrens, the method gives writers more freedom, since it allows them to revisit and expand on previously noted ideas, creating a continuous workflow not dependent on willpower or sudden inspiration.
Tools and Routine
Ahrens highlights that you don’t need fancy tools to begin using the method. While he suggests software like Zotero (or Obsidian) for managing references and Zettelkasten systems for organizing notes, he stresses that the most important factor is consistency—keeping a regular practice of reviewing and creating notes, making it a daily habit. As he puts it:
“A good structure is something you can rely on. It relieves you from trying to remember everything and allows you to focus on what really matters: the content, the argument, and the ideas.”
A Method for Every Situation
One of the greatest strengths of the method is its flexibility. It can be used to organize literature notes, project insights, academic annotations, or even random ideas that pop up throughout the day. Over time, these notes evolve into a vast interconnected knowledge network, which can be easily used to produce articles, books, or reports.
Ahrens also stresses that once the system is in place, it works almost automatically, making research and writing easier. He writes:
“I only write when I know exactly what I’m going to say. If I hesitate for a moment, I put the subject aside and move on to something else.”
Conclusion
The Smart Notes technique proposed by Sönke Ahrens in How to Take Smart Notes offers a practical and effective approach for anyone looking to improve productivity in writing and learning. It turns writing from a daunting task into a fluid, continuous process, eliminating creative block and allowing ideas to naturally unfold over time.
If you’re looking for a method to help you think better, write more easily, and organize your knowledge effectively, I strongly recommend reading this book and applying its techniques in your daily life.
“Writing good notes is not about preparing for the future, it’s about improving the present.”

How to Take Smart Notes: One Simple Technique to Boost Writing, Learning and Thinking
Discover how to boost your projects by writing every day.
Understanding and remembering important information can be a big challenge, but Sönke Ahrens argues that writing is a powerful technique to support these processes. For the author, every intellectual effort begins with a note.
In this book, which has already inspired scholars and writers worldwide, the German researcher—whose expertise and knowledge have made him a leader in his field—reveals how the simple activity of taking notes can be used as a tool to improve comprehension, learning, and accelerate reasoning.
Through simple tips and practical examples, you will learn to harness writing as a way to grow both personally and professionally.