This is a well produced oversized book containing many very good photographs of people, landscapes, buildings and more. It serves as a taster to where a prospective visitor to the US may wish to go. Even more, I suspect, it will appeal to armchair travellers.
The format is rather formulaic. After short illustrated texts on US food, politics, culture and more it then summarises the nature of collections of states in the US. This is followed by four pages for each state in alphabetical order describing its key features including a short history, demographic and religious data, industrial activity, top attractions and so on. The range of information for each state never varies and Rhode Island - the smallest state in population terms - gets exactly the same number of pages as California, the most populated. In many ways it's a well informed paper version of Wikipedia with some rather nice graphics.
Slightly at odds with the broad-brush approach is a small selection of road trips including, predictably enough Route 66 and 1/101 but this section I found interesting together with the paragraphs at the end of the book detailing US overseas territories.
In summary this book provides a good selection of fast facts on the US. I think the title is a little misleading though. It's not really 'A Journey through America' so much as a gazetteer of each state. It's not a travelogue. The title and the fixed structure (which does at least allow easy comparison) just knocks this book down a star to four stars for me.