A mind map is a diagram used to visually organize information. A mind map is hierarchical and shows relationships among pieces of the whole.[1] It is often created around a single concept, drawn as an image in the center of a blank page, to which associated representations of ideas such as images, words and parts of words are added. Major ideas are connected directly to the central concept, and other ideas branch out from those major ideas. https://en.wikipedia.org/wiki/Mind_map
Mindmaps are beautiful and helpful in taking notes. When you will read later "you will thank yourself"
its creating as well as logical way of note taking.
My blog for the freemind https://dzone.com/articles/mind-map-guide-for-your-first-one
Below are the mindmaps or notes taken by me while reading articles, attending trainings and reading books.
All note by Manas Ranjan Dash find it on my blog