Have you ever felt like your notes are just a chaotic collection of thoughts, scattered across notebooks, apps, or sticky notes, never quite coming together into something useful, like a second brain?

The Zettelkasten method, developed by German sociologist Niklas Luhmann, is a highly effective system for organizing and connecting ideas to foster creativity, enhance writing, and support knowledge ...

Note-taking can help in class or a meeting—and if you do them right, they'll help you afterward as well. Lindsey Ellefson is Lifehacker’s Features Editor. She currently covers study and productivity ...