Provides relevant tracks for note taking whether on basis of a written support (reading a book, synthesis of a course, studying a report, ..) or oral (conference, meeting, courses, ...). But also suggests ways to prepare an oral presentation / meeting And it works !!! I applied the method to a meeting as a participant: Preparation of (larger branches) included on the agenda, stating my questions; during the note-taking meeting important elements addressed (sub-branches) but also facilitated discussions reorientation towards the points or questions not addressed; at the end of the meeting, I was the only one able to summarize the actions to be taken! The other participants were lost in the details and had no overall vision.