How to Take Smart Notes2017
One Simple Technique to Boost Writing, Learning and Thinking – for Students, Academics and Nonfiction Book Writers
by Sönke Ahrens
An informational book that describes and advocates for the note taking system of the German sociologist Niklas Luhmann. The author's primary claim is that Luhmann's system of keeping a slip-box (or "zettelkasten") full of interesting ideas and bibliographic references can help students, academics, and non-fiction writers be more productive.
— from OpenLibrary
10 editions at OpenLibrary