If you can get over the unfortunate timing of a highly stylized account of 1930s Germany through the eyes of a curious American couple seeking out nudists in Europe, this book is quite interesting.
The photos, though, are exquisite.
I found a first edition of this book and had to have it, for the photos alone.
The writing is good. They are convinced that nudism in America is imminent. They are certain that it is imperative for the health of everyone. We all know what happened next.