I read this book because a friend of mine at my old dance studio actually wrote it and includes lots of personal testimony from other people I met/friends I know.
I may already have believed the benefits of dancing, but it was still a great read!
Marian not only goes over all of the health and mental health benefits of taking up dancing, but also describes the main dances, dance terms you might be confused about, and how to go about getting into competitions, if you're so inclined. Not to mention, she also lampoons all of your reasons for putting off starting to learn to dance, haha.
My favorite part was reading the testimonies of people who had been dealing with various social and normal anxiety and used dancing as a therapy. I have social anxiety, myself, and after I threw myself into dancing it got a hell of a lot better. My story isn't the most drastic, but some of the ones in this book are and I'm amazed and proud of the people who've overcome their anxiety demons via dancing.
My only criticism would be the few chapters going over the terminology of dancing and how competitions work, etc, because that stuff, while good information for wannabe-dancers, doesn't seem relevant to the title of the book.
Overall, if you have ever considered learning a few steps, you should definitely grab this book and give it a read!