I also can't say enough about the visual materials included - photos, pages of old brochures, postcards, dining car menus, car floor plans, etc. There is just a wealth of stuff to look at, all of it relevant, much of it beautiful and if not then at least incredibly interesting. It's obvious that a great deal of effort went into gathering materials for this book and it shows.
There is not a bad thing to say about this book - if anything, you'll wish there were just a few more pages, but that's more a testament to the quality of what's there than a commentary on what might be missing.