Theory of Notebooks

Billy Oppenheimer The Notecard System: Capture, Organize, and Use Everything You Read, Watch, and Listen To

Tiago Forte Building a Second Brain: A Proven Method to Organize Your Digital Life and Unlock Your Creative Potential

Bob Doto A System for Writing: How an Unconventional Approach to Note-Making Can Help You Capture Ideas, Think Wildly, and Write Constantly - A Zettelkasten Primer