If this book isn't badly written, then why is it still bad?

Is it possible to write a whole a book like a Roxette song, and should anyone read it?

Why is this book only for those who are really into environmentalism?

What were German readers looking for in a travel book after World War II?

Why is this book still so awesome after so many years?

Is this German classic really that awesome, or could it be just a bit overrated?