Prof. Dr. Sönke Ahrens is a German author and academic known for his contributions in the fields of education and [[productivity]]. With a background in philosophy and educational science, his work primarily focuses on effective learning techniques, knowledge management, and personal development. Ahrens is most renowned for his book: **[[📚 How to Take Smart Notes_Ahrens_2017|How to Take Smart Notes (2017)]]** [Link](https://amzn.to/47GWH6z): This book delves into the [[Efficiency|efficient]] [[note-taking]] method known as the [[Zettelkasten]] system. This technique, originally developed by sociologist [[Niklas Luhmann]], emphasises a non-linear and interconnected way of collecting and organising knowledge. ![[Sönke Ahrens.png|100]]