This book is not for beginners in marketing. Not because the words are sophisticated, but because they are too general.
For example, you will find "who it's for" so many times throughout this book. What does it actually mean? There can be painfully many interpretations, such as: is it about a certain person I know? Those in a certain place at a certain time? Those in pain?
Actually, It simply means "target market." (Well, a bit deeper than that.)
So the ability to specify what Seth means with his verbage is a better way to start.
You also need to have a very basic knowledge on psychology, advertising and business.
For someone who has been following Seths's work for years, this book is more of a relief!