A new introduction includes a biographical sketch of Post and explains the context of her journey in the heroic age of motoring. Accompanying the text are many original photographs, sketch maps showing the route, and Post's meticulous daily lists of expenditure, a valuable historical document showing the price of everything from car repairs to tips. New to this addition are explanatory footnotes and an appendix giving the miles Post traveled each day, noting the cities of departure and destination and the hotel for each night.