Based on his new book about the Paris Métro, Mark Ovenden shares its Art Nouveau inspired stations and Art Deco signage. The book contains more than one thou­sand maps, diagrams, and photographs — histor­ical and current — along with fasci­nating factual tidbits and enthu­si­astic, informed commen­tary embellish this gorgeous cultural history of the Métro’s design and construc­tion.