i think this book really does not help you with singing because most of the time, instead of singing your reading which kinda weird because supposedly when you desire to sing you'd practice it on hand instead of reading it and nothing seems to help you improve your singing but words written on a book describing what is the proper way of singing.
Well, this book is boring and nothing does help me to improve my voice.
And what's more this book has too many words, too many flowery words that makes you want to close the book forever. The author say to much, is it to inspire you? well, that is not what happened to me, it annoys me and wanted to skip those parts.