I was excited to see this book when it came out, and coincidentally purchased a copy in Amsterdam at a book-signing with Pia. When I travel, I like to bring home something that is a unique expression of the artisans of the place I have visited, or just something that is not so mainstream. While many of the resources in Pia's guide are fashion related and I didn't visit them, I found the home accessories / tabletop to be great. A friend of mine who lives in Paris flipped through the book and verified that it is indeed an excellent selection of high quality shops worthy of visiting. Many of the shops, as you may have already guessed, are quite expensive.
The small size is a plus because it fits into your bag very well. The images are also nice although I would -not- consider this to be a photobook or 'inspiration' book as it appears other reviewers thought it would be. It is a guide to shops which offer hand made and/or custom-made accessories (clothing, fabrics, tabletop) in Paris, and a very very good one.