Notetaking For The 21st Century Sketch notes--or graphic notes, or whatever term you like--are one of the single most important developments in note-taking history. Hold on, give me a second to explain. Exactly why they matter has something to do with the way our brains work, and the explosion of technology, and a little bit of viral success. The point of notes, it seems, is to capture important ideas for future reference. While it's nothing new to take notes that combine images with words…