Misleading title. Most of the chapters are redundant and boring. I am puzzled whether its an academic work or self-help or popular-puzzles book or an amalgam of everything. Not sure if there is any link between the content of the chapters and the quiz/puzzles in between them.
This book offers several fun exercise, and not just mental exercises, to tap into those rarely used parts of your brain and to connect those parts of your brain that can pinch hit for another part. I recommend this book.