Hop on board and take a trip through the train tunnels of ten cities around the world! Uijung Kim and Cicadabooks have collaborated over a year to create this amazing search-and-find book of underground systems. Discover what makes each subway unique and then see if you can spot the things hiding in the pictures. Perfect for train-obsessed children, but also for a wider audience, this book teaches young readers about transport and also about cultural signifiers of different cities around the world. Uijung’s busy, colourful illustrations have a manga-like sensibility that feels joyously contemporary.