Name: Penguin Underground Lines Vital statistics: Twelve books, one for each Underground line, to celebrate the Tube's 150th anniversary. Height: when all twelve are stacked up: 47.6 inches. Idea for series: Penguin asked twelve people to tell their tale of the city in 15,000 words (or in one case, no words at all), each inspired by a different tube line. Defining characteristics: While the responses range from the polemical to the fantastical, the personal to the societal, they offer something for every taste. Read individually they're delightful small reads, pulled together they offer a particular portrait of a global city. Appearance: determined by the authors, who photographed/drew/picked their cover image, chose their title and wrote the back cover copy, the Penguin logo also takes an outing in the official colour of each tube line -- a unique play with Penguin's design. Books are 'as new'; card slipcase has a little shelf wear and is 'very good'.