Learning maps are a note-taking technique. This technique could be used in a number of situations:
for planning: personal planning, projects, sales, or any kind of planning where you need an overview
for problem solving
when you make summaries, eg of a book, a lecture, a radio or TV programme
when you need a structure
for brainstorming and idea generation
for note taking: meetings, lectures, debates, interviews, etc and many more. You will find a lot of ideas and examples in this book.