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.

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.