From the back of the book:
The Daily Planet Guide to Metropolis is the initial book in the travel guide series to the DC Universe produced by the staff of the Daily Planet. Everything you want to know about the City of Tomorrow is contained in this volume.
Discover the best restaurants, hotels, parks, places to live, and things to do in the city. Learn the history of the city, and get a Metahuman Index to get you started on the exciting pastime of hero watching. If that doesn't satisfy your curiosity, the staff has also included quick notes that offer even more insights about the greatest city on the planet!
This travel guide looks at historical Metropolis, before Brainiac's attempt to take over the city.