This book is a fascinating portrait of a fascinating and hugely influential man. And the writing is marvelous: crisp, precise, it's a model for top-notch nonfiction writing.
If you have any interest in how New York got to be the way it is now, you must read this book.
The amount of detailed research in the book is amazing. We are able to follow the character development of Moses from his days as an idealistic civic reformer through the transformation by which he became one the most shrewd, and venal, operators in the system he set out to reform. As the years go by, we learn that although Moses's energy and ambition do not wane, his ideas of urban infrastructure design are hopelessly out of date. Furthermore, his preference for glamorous bridges instead of more practical tunnels, and his stilting of the mass transit system in favor of more and more expressways results in censure from Caro. In he end, we are intended to believe that the work of Robert Moses has become a barrier to the development of the greatest American city.
In his judgement of Moses, however, Caro still brings out the genius of one of the most influential shapers of modern urban design of the last century. The genius was, unfortunately, corrupted by the trappings of absolute power in his field.
The book is worth reading as an insight into urban politics, as a history of the infrastructure of New York, as a character study of an amazing personality and as a well written narrative biography. Combined, these factors make the 1200 pages well worth plowing though. Several unexpected stories within the book could stand alone as great (but certainly not impartial) writing. The story of a Jewish neighborhood that was torn down to make room for a Moses expressway is perhaps the most powerful passage in the book.
One final point is that Caro tends to sensationalize the sins of Moses, while painting other characters in a more positive light. For example, very little of the political machinations of Fiorello LaGaurdia and Al Smith are discussed, making Moses look evil in comparison to the two. Caro does a similar thing with his portrayal of Coke Stevenson in the LBJ books. Caro definitely sets out to get Robert Moses, but he backs up his criticism with a brilliant book.