Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Great guided tour, but losing edge to technology

I have this book as well as several others of Cameron's (the photographer). Like the others, it shows a perspective on the city that most are not able to get with clear pictures on large pages. Along comes google and bing with aeriel and bird's eye views of all these locations for free online and the value of the book is somewhat diminished. The benefits it retains are:-short paragraphs giving historical or descriptive commentary on the photographs,-the fact that the views are selected by the photographer & a local author who knows the city/area (rather than the unguided tour from google & bing).-an historical photographic record of the area (google & bing update their pictures periodically and are meant to be as current as possible).It, like the others, are interesting books to have, though.