The author developed "Idea Marathon" that records at least one idea per day on a note. The book describes how to continue it, the examples of comming up idea from the daily note, and how to come up with an idea. The method is used in some major companies and schools in Japan
Un organized fragments of idea are scattered throughout the book. Well, maybe I'm reading too many business related books in English, this one looks unorganized and has no significant know-how at all, other than writing down an idea every day. I've already done that for years before I read this book but it never worked any more than plain to-do list...