As far as travel guides go, this book is completely useless. By the end of my skimming this book, I was about ready to vomit. This is NOT my type of travel book. If you lovely flowery, overly descriptive language full of superlatives and black-and-white photos of up-close architectural details, furniture, ribbons, etc, then this book is for you. If you are looking for practical information, like opening and closing times, directions, website information, go find a Rick Steves guidebook.
The first half of this book is about the 20 arrondissements of Paris. She writes in superlatives to give you an idealized viewpoint of each neighborhood, but there is nothing helpful. It's like reading about someone describing how rich and decadent the chocolate ice cream is that she's eating without telling you where you can get it. Her photos are similar in that teasing manner.
The second half of this book is almost as worthless as the first half. She continues with her superlatives and flowery descriptions of places to go in Paris. But other than names, addresses and phone numbers, the information is pretty useless, unless, for instance, you really want to know what kind of seating is available at Shakespeare and Company while you peruse through your books. She spends a lot of time describing the ambiance or how "cute" a place is, but not what the place sells or exhibits.
I'm glad a friend sent me this book after she was finished using it rather than going out and spending the money on it myself. It's definitely not something I would have purchased for myself.